Vladimir Putin has served three terms and is currently in a fourth as President of Russia (2000–2004, 2004–2008, 2012–2018 and May 2018 to present) and was Acting President from 1999 to 2000, succeeding Boris Yeltsin after Yeltsin's resignation. Putin was also Prime Minister for three months in 1999 and served a full term from 2008 to 2012. During Putin's presidency, he has been a member of the Unity party and the United Russia party. He is also affiliated with the People's Front, a group of supporters that Putin organized in 2011 to help improve the public's perception of United Russia. His political ideology, priorities and policies are sometimes referred to as Putinism ().