Question: Karlheinz Rüdisser is a politician for which Christian democratic and conservative political party in Austria?

Context paragraphs:
Christian Democratic Union (Ecuador): The Christian Democratic Union (Spanish: "Unión Demócrata Cristiana" , "UDC), formerly known as Popular Democracy (Spanish: "Democracia Popular" , DP"') was a Christian democratic political party in Ecuador.  It was formed in the 1970s by centrist Christian Democrats who had left the Social Christian Party and the left wing of the Conservative Party who were oriented towards Liberation theology.  It officially registered as a political party in 1979.  It was originally considered a centre-left party.  Later in the 1990s, it shifted to the centre-right.

Karlheinz Rüdisser: Karlheinz Rüdisser (born 25 February 1955, Bregenz, Austria) is an Austrian politician for the Austrian People's Party (ÖVP), who, since December 2011, is the state administrator of Vorarlberg.

The Republicans (Germany): The Republicans (German: "Die Republikaner" , REP) is a national conservative political party in Germany.  The primary plank of the program is opposition to immigration.  The party tends to attract protest voters who think that the Christian Democratic Union (CDU) and the Christian Social Union of Bavaria (CSU) are not sufficiently conservative.  It was founded in 1983 by former CSU members Franz Handlos and Ekkehard Voigt, and Franz Schönhuber was the party's leader from 1985 to 1994.  The party has since been led by Rolf Schlierer.  The Republicans had seats in the European Parliament between 1989 and 1994, Abgeordnetenhaus of West Berlin in 1989-1990 and in the parliament of the German state of Baden-Württemberg between 1991 and 2001.

Austrian People's Party: The Austrian People's Party (German: "Österreichische Volkspartei" ; ÖVP) is a Christian democratic and conservative political party in Austria.  A successor to the Christian Social Party of the late 19th and early 20th centuries, it is similar to the CDU/CSU of Germany in terms of ideology, with both operating as catch-all parties of the centre-right.  The Austrian People's Party was founded immediately following the reestablishment of the Republic of Austria in 1945, and since then has been one of the two largest Austrian political parties with the Social Democratic Party of Austria (SPÖ).  In federal governance, the ÖVP is currently the smaller partner in a coalition government with the SPÖ since 2007, with the ÖVP party leader as Vice-Chancellor of Austria.

Christian Democratic Party of the Overthrow: The Christian Democratic Party of the Overthrow (Greek: Χριστιανοδημοκρατικό Κόμμα Ανατροπής ), previously named as Christian Democratic Party of Greece (Greek: Χριστιανοδημοκρατικό Κόμμα Ελλάδος ) is a conservative and Christian democratic political party of Greece.  It was founded in May 23, 2013 by Nikos Nikolopoulos, a former MP of the New Democracy party from Achaea.

Ukrainian Christian Democratic Party: Ukrainian Christian Democratic Party (Ukrainian: Українська християнсько-демократична партія , "Ukrayinska Khrystyianska Demokratychna Partiya"; UKhDP) is a small political party of Ukrainian SSR and Ukraine.  It became a progenitor of the two other parties of christian democracy such Christian Democratic Party of Ukraine and Christian Democratic Union.  The party became a powerful force in Ukraine during the 1989 revolutionary wave in Europe and contributed greatly to the revival of such Ukrainian cultural organizations as Prosvita, Association of the Ukrainian Language, Plast as well as the Ukrainian Greek Catholic Church.

Christian Democratic Alliance (South Africa): The Christian Democratic Alliance was a minor political party in South Africa, an alliance of five Christian Democratic parties: the Alliance for Community Transformation, the Christian Democratic Party, the Federation of Democrats, the New Labour Party, and the Party vir Christelike Politiek (Party for Christian Politics).  These parties continued as independent entities until the 2009 election.

Croatian Christian Democratic Union: The Croatian Christian Democratic Union (Croatian: "Hrvatska kršćanska demokratska unija" or HKDU) is a minor right wing Christian democratic political party in Croatia.  It was founded in 1992 after the merger of Croatian Democratic Party (HDS) and the Croatian Christian Democratic Party (HKDS).

People's Party (Panama): The People's Party (Spanish: "Partido Popular" , until 2001 the Christian Democratic Party of Panama) is a Panamanian Christian democratic political party.  It was one of Latin America's most conservative and anti-communist Christian democratic parties.

Social Christian Conservative Party: The Social Christian Conservative Party (Spanish: "Partido Conservador Social Cristiano" , PCSC) was a centrist political party in Chile, founded in 1949 as the Conservative Party split in two factions.  For electoral purposes, one of the factions was named the Social Christian Conservative Party (the other being called the Traditionalist Conservative Party).  Some of the Social Christian Conservatives later returned to form in together with the 'Traditionals' the United Conservative Party (1953), whereas others participated in the with the National Falange from 1955 to 1957.  In July 1957 the Social Christian Conservative Party merged with the Chilean National Falange to form the Christian Democratic Party of Chile.

Supporting paragraphs: Karlheinz Rüdisser Austrian People's Party
Answer: Austrian People's Party