In doing so, she reflected public opinion that grew more hostile toward Turkish membership of the European Union. 2005 national election On 30 May 2005, Merkel won the CDU/CSU nomination as challenger to Chancellor Gerhard Schröder of the SPD in the 2005 national elections. Her party began the campaign with a 21-point lead over the SPD in national opinion polls, although her personal popularity lagged behind that of the incumbent. However, the CDU/CSU campaign suffered when Merkel, having made economic competence central to the CDU's platform, confused gross and net income twice during a televised debate. She regained some momentum after she announced that she would appoint Paul Kirchhof, a former judge at the German Constitutional Court and leading fiscal policy expert, as Minister of Finance. Merkel and the CDU lost ground after Kirchhof proposed the introduction of a flat tax in Germany, again undermining the party's broad appeal on economic affairs and convincing many voters that the CDU's platform of deregulation was designed to benefit only the rich. This was compounded by Merkel's proposal to increase VAT to reduce Germany's deficit and fill the gap in revenue from a flat tax. The SPD were able to increase their support simply by pledging not to introduce flat taxes or increase VAT. Although Merkel's standing recovered after she distanced herself from Kirchhof's proposals, she remained considerably less popular than Schröder, and the CDU's lead was down to 9% on the eve of the election. On the eve of the election, Merkel was still favored to win a decisive victory based on opinion polls. On 18 September 2005, Merkel's CDU/CSU and Schröder's SPD went head-to-head in the national elections, with the CDU/CSU winning 35.2% (CDU 27.8%/CSU 7.5%) of the second votes to the SPD's 34.2%. The result was so close, both Schröder and Merkel claimed victory. Neither the SPD-Green coalition nor the CDU/CSU and its preferred coalition partners, the Free Democratic Party, held enough seats to form a majority in the Bundestag. A grand coalition between the CDU/CSU and SPD faced the challenge that both parties demanded the chancellorship. However, after three weeks of negotiations, the two parties reached a deal whereby Merkel would become Chancellor and the SPD would hold 8 of the 16 seats in the cabinet. Chancellor of Germany, 2005–2021 First CDU–SPD grand coalition, 2005–2009 The First Merkel cabinet was sworn in at 16:00 CET on 22 November 2005.