2017 German federal election

At the previous federal election in 2013, the incumbent government—composed of the Christian Democratic Union (CDU), the Christian Social Union (CSU), and the Free Democratic Party (FDP)—had failed to maintain a majority of seats. The FDP[1] failed to get over 5% of the vote in 2013, denying the party seats in the Bundestag for the first time in its history. In contrast, the CDU/CSU obtained their best result since 1990, with nearly 42% of the vote and just short of 50% of the seats. The CDU/CSU then successfully negotiated with the Social Democrats (SPD) to form a grand coalition for the third time.[2]

In March 2017, the SPD chose Martin Schulz, the former President of the European Parliament, as their leader and chancellor candidate. Support for the SPD initially increased; however, the CDU afterward regained its lead, with polls generally showing a 13–16% lead over the SPD.

German law requires that a new Bundestag shall be elected on a Sunday or on a nationwide holiday between 46–48 months after the last Bundestag's first sitting (Basic Law Article 39 Section 1).[3] In January 2017, then-President Joachim Gauck scheduled the election for 24 September 2017.[4]

After the election, the 19th Bundestag had to hold its first sitting within 30 days. Until that first sitting, the members of the 18th Bundestag remained in office (Basic Law Article 39 Section 1 and 2).[3]

Germany uses the mixed-member proportional representation system, a system of proportional representation combined with elements of first-past-the-post voting. The Bundestag has 598 nominal members, elected for a four-year term; these seats are distributed between the sixteen German states in proportion to the states' population eligible to vote.

Every elector has two votes: a constituency and a list vote. 299 members are elected in single-member constituencies by first-past-the-post, based just on the first votes. The second votes are used to produce an overall proportional result in the states and then in the Bundestag. Seats are allocated using the Sainte-Laguë method. If a party wins fewer constituency seats in a state than its second votes would entitle it to, it receives additional seats from the relevant state list. Parties can file lists in each single state under certain conditions; for example, a fixed number of supporting signatures. Parties can receive second votes only in those states in which they have successfully filed a state list.

If a party by winning single-member constituencies in one state receives more seats than it would be entitled to according to its second vote share in that state (so-called overhang seats), the other parties receive compensation seats. Owing to this provision, the Bundestag usually has more than 598 members. The 18th Bundestag, for example, started with 631 seats: 598 regular and 33 overhang and compensation seats. Overhang seats are calculated at the state level, so many more seats are added to balance this out among the different states, adding more seats than would be needed to compensate for overhang at the national level in order to avoid negative vote weight.

In order to qualify for seats based on the party-list vote share, a party must either win three single-member constituencies or exceed a threshold of 5% of the second votes nationwide. If a party only wins one or two single-member constituencies and fails to get at least 5% of the second votes, it keeps the single-member seat(s), but other parties that accomplish at least one of the two threshold conditions receive compensation seats. (In the most recent example of this, during the 2002 election, the PDS won only 4.0% of the party-list votes nationwide, but won two constituencies in the state of Berlin.) The same applies if an independent candidate wins a single-member constituency (which has not happened since 1949). In the 2013 election, the FDP only won 4.8% of party-list votes; this cost it all of its seats in the Bundestag.

If a voter has cast a first vote for a successful independent candidate or a successful candidate whose party failed to qualify for proportional representation, their second vote does not count to determine proportional representation. However, it does count to determine whether the elected party has exceeded the 5% threshold.

Parties representing recognized national minorities (currently Danes, Frisians, Sorbs and Romani people) are exempt from the 5% threshold, but normally only run in state elections.[5]

Altogether 38 parties have managed to get on the ballot in at least one state and can therefore (theoretically) earn proportional representation in the Bundestag.[6] Furthermore, there are several independent candidates, running for a single-member constituency. The major parties that are likely to either exceed the threshold of 5% second votes or to win single-member constituencies (first votes) were:

Traditionally, the Christian Democratic Union of Germany (CDU) and Christian Social Union in Bavaria (CSU), which refer to each other as 'sister parties', do not compete against each other. The CSU only contests elections in Bavaria, while the CDU contests elections in the other fifteen states. Although these parties have some differences, such as the CSU's opposition to the previous government's immigration policies,[7] the CDU and CSU share the same basic political aims and are allowed by the Regulations of the Bundestag to join into one parliamentary Fraktion (a parliamentary group composed of at least 5% of the members of the Bundestag, entitled to specific rights in parliament) after the elections,[8] as they do in the form of the CDU/CSU group.

As the CDU/CSU and the Social Democratic Party (SPD) were likely to win the most seats in the election, their leading candidates are referred to as 'Chancellor candidates'. This does not, however, mean that the new Bundestag is legally bound to elect one of them as Chancellor.

Constituencies won

The CDU/CSU and the SPD remained the two largest parties in the Bundestag, but both received a significantly lower proportion of the vote than they did in the 2013 election.

Results of the second vote by state.

Additional member seats by state.

The AfD received enough votes to enter the Bundestag for the first time, taking 12.6 percent of the vote—more than double the five percent threshold required to qualify for full parliamentary status. It also won three constituency seats, which would have qualified it for proportionally-elected seats in any event.

The FDP returned to the Bundestag with 10.7 percent of the vote. Despite improving their results slightly and thus gaining a few more seats, the Left and the Greens remained the two smallest parties in parliament.

The disproportionality of the German federal election 2017 was 3.90 according to the Gallagher Index

Party		Constituency			Party list			Total seats	+/–
		Votes	%	Seats	Votes	%	Seats
	Christian Democratic Union (CDU)[lower-alpha 9]	14,030,751	30.2	185	12,447,656	26.8	15	200	−55
	Social Democratic Party (SPD)	11,429,231	24.6	59	9,539,381	20.5	94	153	−40
	Alternative for Germany (AfD)[lower-alpha 10]	5,317,499	11.5	3	5,878,115	12.6	91	94	+94
	Free Democratic Party (FDP)	3,249,238	7.0	0	4,999,449	10.7	80	80	+80
	The Left (DIE LINKE)	3,966,637	8.6	5	4,297,270	9.2	64	69	+5
	Alliance 90/The Greens (GRÜNE)	3,717,922	8.0	1	4,158,400	8.9	66	67	+4
	Christian Social Union in Bavaria (CSU)[lower-alpha 9]	3,255,487	7.0	46	2,869,688	6.2	0	46	−10
	Free Voters	589,056	1.3	0	463,292	1.0	0	0	0
	Die PARTEI	245,659	0.5	0	454,349	1.0	0	0	0
	Human Environment Animal Protection	22,917	0.0	0	374,179	0.8	0	0	0
	National Democratic Party	45,169	0.1	0	176,020	0.4	0	0	0
	Pirate Party Germany	93,196	0.2	0	173,476	0.4	0	0	0
	Ecological Democratic Party	166,228	0.4	0	144,809	0.3	0	0	0
	Basic Income Alliance	–	–	–	97,539	0.2	0	0	New
	V-Partei³	1,201	0.0	0	64,073	0.1	0	0	New
	German Centre	–	–	–	63,203	0.1	0	0	New
	Democracy in Motion	–	–	–	60,914	0.1	0	0	New
	Bavaria Party	62,622	0.1	0	58,037	0.1	0	0	0
	AD-DEMOCRATS	–	–	–	41,251	0.1	0	0	New
	Animal Protection Alliance	6,114	0.0	0	32,221	0.1	0	0	New
	Marxist–Leninist Party	35,760	0.1	0	29,785	0.1	0	0	0
	Party for Health Research	1,537	0.0	0	23,404	0.1	0	0	New
	German Communist Party	7,517	0.0	0	11,558	0.0	0	0	New
	Human World	2,205	0.0	0	11,661	0.0	0	0	New
	The Greys	4,300	0.0	0	10,009	0.0	0	0	New
	Civil Rights Movement Solidarity	15,960	0.0	0	6,693	0.0	0	0	0
	The Humanists	–	–	–	5,991	0.0	0	0	New
	Magdeburger Garden Party	2,570	0.0	0	5,617	0.0	0	0	New
	Alliance for Germany	6,316	0.0	0	9,631	0.0	0	0	0
	The Urbans	772	0.0	0	3,032	0.0	0	0	New
	The Right	1,142	0.0	0	2,054	0.0	0	0	New
	Socialist Equality Party	903	0.0	0	1,291	0.0	0	0	0
	Bergpartei, die "ÜberPartei"	672	0.0	0	911	0.0	0	0	New
	Party of Reason	242	0.0	0	533	0.0	0	0	0
	The Violets	2,176	0.0	0	–	–	–	0	0
	Alliance C – Christians for Germany	1,717	0.0	0	–	–	–	0	New
	New Liberals	884	0.0	0	–	–	–	0	New
	The Union	371	0.0	0	–	–	–	0	New
	Family Party	506	0.0	0	–	–	–	0	0
	The Women	439	0.0	0	–	–	–	0	New
	Renter's Party	1,352	0.0	0	–	–	–	0	New
	Others	100,889	0.2	0	–	–	–	0	–
	Independents	2,458	0.0	0	–	–	–	0	0
Invalid/blank votes		586,726	–	–	460,849	–	–	–	–
Total		46,976,341	100	299	46,976,341	100	410	709	+78
Registered voters/turnout		61,688,485	76.2	–	61,688,485	76.2	–	–	–
Source: Bundeswahlleiter

Results by state

Second Vote ("Zweitstimme", or votes for party list) by state[9]

State	Union	SPD	AfD	FDP	Linke	Grüne	Others
Baden-Württemberg	34.4	16.4	12.2	12.7	6.4	13.5	4.5
Bavaria	38.8	15.3	12.4	10.2	6.1	9.8	7.5
Berlin	22.7	17.9	12.0	8.9	18.8	12.6	7.0
Brandenburg	26.7	17.6	20.2	7.1	17.2	5.0	6.3
Bremen	25.0	26.3	10.0	9.3	13.5	11.0	4.3
Hamburg	27.2	23.5	7.8	10.8	12.2	13.9	4.5
Hesse	30.9	23.5	11.9	11.6	8.1	9.7	4.4
Mecklenburg-Vorpommern	33.1	15.1	18.6	6.2	17.8	4.3	4.9
Lower Saxony	34.9	27.4	9.1	9.3	6.9	8.7	3.6
North Rhine-Westphalia	32.6	26.0	9.4	13.1	7.5	7.6	3.8
Rhineland-Palatinate	35.9	24.2	11.2	10.4	6.8	7.6	3.9
Saarland	32.4	27.2	10.1	7.6	12.9	6.0	3.9
Saxony	26.9	10.5	27.0	8.2	16.1	4.6	6.7
Saxony-Anhalt	30.3	15.2	19.6	7.8	17.8	3.7	5.7
Schleswig-Holstein	34.0	23.3	8.2	12.6	7.3	12.0	2.7
Thuringia	28.8	13.2	22.7	7.8	16.9	4.1	6.5

Additional member seats by state

Second Vote ("Zweitstimme", or votes for party list) seats allocated by each of the 16 states by party.

State[9] seats	CDU/CSU	SPD	AfD	FDP	LINKE	GRÜNE	Total
Baden-Württemberg	0	16	11	12	6	13	58
Bavaria	0	18	14	12	7	11	62
Berlin	2	2	4	3	2	3	16
Brandenburg	0	3	5	2	4	1	15
Bremen	1	0	1	0	1	1	4
Hamburg	3	0	1	2	2	2	10
Hesse	0	7	6	6	4	5	28
Mecklenburg-Vorpommern	0	2	3	1	3	1	10
Lower Saxony	5	6	7	7	5	6	36
North Rhine-Westphalia	4	15	15	20	12	12	78
Rhineland-Palatinate	0	8	4	4	3	3	22
Saarland	0	2	1	1	1	1	6
Saxony	0	4	8	3	5	2	22
Saxony-Anhalt	0	3	4	2	4	1	14
Schleswig-Holstein	0	5	2	3	2	3	15
Thuringia	0	3	5	2	3	1	14

The father of the house of the 19th Bundestag, Hermann Otto Solms

On 24 October 2017 the 19th Bundestag held its opening session, during which the Bundestag-members elected the Presidium of the Bundestag, i.e. the President and the Vice Presidents of the Bundestag. By tradition the biggest parliamentary group (in this case the CDU/CSU-group) has the right to propose a candidate for President of the Bundestag and following the rules of order every group has the right to be represented by at least one Vice President in the presidium. However, the Bundestag may decide to elect additional Vice Presidents. Every member of the presidium had to be elected by an absolute majority of the members of the Bundestag (in this case 355 votes). Until the election of the President of the Bundestag, the father of the house, the member of parliament with the longest membership, presided over the opening session.[10]

• Since he had been a member of the Bundestag for 45 years (since 1972), Wolfgang Schäuble would have been the father of the house.[11] However, since Schäuble was also a candidate for President of the Bundestag and would therefore likely have had to declare his own election, he refused the office. Hermann Otto Solms, who had been a member of the Bundestag for 33 years (1980–2013 and since 2017), stood in for him.[12][13]
• The CDU/CSU group proposed Wolfgang Schäuble to be President of the Bundestag.[14] Schäuble was elected on the first ballot (501 yes votes, 173 no votes, 30 abstentions, 1 invalid vote).
• The CDU/CSU group proposed Hans-Peter Friedrich to be a Vice President of the Bundestag.[15] Friedrich was elected on the first ballot (507 yes votes, 112 no votes, 82 abstentions, 2 invalid votes).
• The SPD group proposed Thomas Oppermann to be a Vice President of the Bundestag. Oppermann was elected on the first ballot (396 yes votes, 220 no votes, 81 abstentions, 6 invalid votes).
• The AfD group proposed Albrecht Glaser to be a Vice President of the Bundestag.[16] On 2 October 2017 the groups of the SPD, the FDP, The Left and Alliance 90/The Greens criticised the nomination because of controversial remarks about Islam and the basic right of religious freedom made by Glaser during the AfD's election campaign and asked the AfD group to nominate someone else to the post. The AfD group declined to accede to the request and nominate someone else.[17] Glaser failed to get a majority on three ballots, although even a plurality would have been sufficient on the third (first ballot: 115 yes votes, 550 no votes, 26 abstentions, 12 invalid votes, second ballot: 123 yes votes, 549 no votes, 24 abstentions, 1 invalid vote, third ballot: 114 yes votes, 545 no votes, 26 abstentions).
• The FDP group proposed Wolfgang Kubicki to be a Vice President of the Bundestag. Kubicki was elected on the first ballot (489 yes votes, 100 no votes, 111 abstentions, 3 invalid votes).
• The Left group proposed Petra Pau, who has held this position since 2006, to be a Vice President of the Bundestag. Pau was elected on the first ballot (456 yes votes, 187 no votes, 54 abstentions, 6 invalid votes).
• The Alliance 90/Greens group proposed Claudia Roth, who already held this position in the previous legislative session, to be a Vice President of the Bundestag.[18] Roth was elected on the first ballot (489 yes votes, 166 no votes, 45 abstentions, 3 invalid votes).

The AfD's seat in the Presidium has remained vacant since the first session. On 7 November 2018, the AfD-group nominated Mariana Harder-Kühnel to the post.[19] Harder-Kühnel failed to secure a majority on the first ballot on 29 November 2018 (223 yes votes, 387 no votes, 44 abstentions), on the second ballot on 12 December 2018 (241 yes votes, 377 no votes, 41 abstentions), or on the third ballot on 4 April 2019 (199 yes votes, 423 no votes, 43 abstentions)[20][21][22] On 9 April 2019, the AfD nominated Gerold Otten to the post; however, he has failed to secure a majority on the first ballot on 11 April 2019 (210 yes votes, 393 no votes, 31 abstentions),[23][24] on the second ballot on 16 May 2019 (205 yes votes, 399 no votes, 26 abstentions),[25] or on the third ballot on 6 June 2019 (211 yes votes, 426 no votes, 30 abstentions).[26]