William Kipchirchir Samoei Arap Ruto is a Kenyan politician who is the fifth and current president of Kenya since 13 September 2022. Prior to becoming president, he served as the first elected deputy president of Kenya from 2013 to 2022. Previously, holders of the position were referred to as Vice President and the officeholder was unelected and appointed by the President. He previously served in three cabinet portfolios as the Minister for Home Affairs, the Minister of Agriculture and as Minister for Higher Education.
Ruto was elected Member of Parliament for Eldoret North constituency from 1997 to 2007 under the KANU, and from 2007 to 2013 through the ODM party. He was the Minister for Home Affairs in the Daniel arap Moi administration from August to December 2002.
Under the Mwai Kibaki administration, he was the Minister for Agriculture from 2008 to 2010 and Minister for Higher Education from April to October 2010. Ruto first contested for the presidency during the 2007 election, but lost to Raila Odinga on the ODM party primaries; together with Musalia Mudavadi, who finished second, he then supported the candidature of Odinga. He again ran for the presidency on the 2013 election, but withdrew his candidature in favour of Uhuru Kenyatta.
He was later nominated to run for the deputy presidency in the 2013 election under the United Republican Party, becoming the running mate of Uhuru Kenyatta from The National Alliance (TNA). He was re-elected to the deputy presidency under the Jubilee Party in the 2017 Kenyan general election. Ruto successfully ran for the presidency in the 2022 election, this time under the United Democratic Alliance (UDA).
Amidst a fall-out, Kenyatta supported his opponent Raila Odinga. The election was marred by allegations of electoral fraud by allies of Odinga, although international observers have not corroborated such claims.