who is the senator of the united states 2010?
Jefferson Sessions
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 On November 14 , 2008 , Keyes filed a lawsuit — naming as defendants California Secretary of State Deborah Bowen , President @-@ elect Barack Obama , Vice President @-@ elect Joe Biden , and California 's 55 Democratic electors — challenging Obama 's eligibility for the U.S. Presidency . The suit requested that Obama provide documentation that he is a natural born citizen of the United States . 

neutral
 He ran for President of the United States in 1996 , 2000 , and 2008 ( founding and serving as the presidential nominee of the America 's Independent Party in 2008 ) , and was a Republican nominee for the U.S. Senate in 1988 , 1992 , and 2004 . Keyes was appointed Ambassador to the Economic and Social Council of the United Nations by President Ronald Reagan , and served as Reagan 's Assistant Secretary of State for International Organization Affairs from 1985 to 1987 ; in his capacities as a UN ambassador , among Keyes 's accomplishments was contributing to the Mexico City Policy . 

contradiction
 Due to the controversy over the effects of the Seventeenth Amendment , advocates have emerged for both reform and / or repeal of the amendment . Under President Barack Obama 's administration in 2009 , four sitting Democratic senators left the Senate for appointed executive branch positions : Barack Obama ( President ) , Joe Biden ( Vice President ) , Hillary Rodham Clinton ( Secretary of State ) , and Ken Salazar ( Secretary of the Interior ) . Controversies developed about the successor appointments made by Illinois Governor Rod Blagojevich and New York Governor David Paterson . New interest was aroused in abolishing the provision for the Senate appointment by the governor . 

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 Subsequent to this election Obama was elected to the United States Senate in 2004 . He was then elected President of the United States in 2008 and re @-@ elected in 2012 . 

contradiction
 Democratic Senator and former Governor Evan Bayh of Indiana began a movement for the 2008 Democratic nomination for president of the United States shortly following the 2004 presidential election . 
