Timeline: President Obama's first term, 2009-2012

• Obama is sworn in Jan. 20, 2009
• Obama signs orders to close Guantanamo Bay Jan. 22, 2009
• Obama announces his plan to withdraw from Iraq Feb. 27, 2009
• Obama allows federal funding for embryonic research March 9, 2009
• First sitting president on “Tonight Show” March 20, 2009
• Obama bails out General Motors and Chrysler March 29, 2009
• Obama’s first meeting with the Queen of England March 31, 2009
• Obama hosts a “beer summit" July 30, 2009
• Obama wins Nobel Peace Prize Oct. 9, 2009
• Obama delivers first State of the Union address Jan. 27, 2010
• Obama signs health care bill March 23, 2010
• Kagan appointed to U.S. Supreme Court Aug. 6, 2010
• Republicans take control of the House Nov. 2, 2010
• Obama signs 9/11 first responders bill Jan. 2, 2011
• Obama marks Tucson shooting Jan. 10, 2011
• Obama defends involvement in Libya March 28, 2011
• Obama announces his bid for re-election via email April 4, 2011
• Narrowly avoids government shutdown April 9, 2011
• Obama releases birth certificate April 27, 2011
• President Obama mocks Donald Trump and other "birthers" April 30, 2011
• Obama announces Osama bin Laden's death May 1, 2011
• Obama honors 9/11 victims in Manhattan May 5, 2011
• President Obama visits Missouri tornado victims May 29, 2011
• Obama's approval rating sinks below 40 percent. August 22, 2011
• Obama presents the American Jobs Act Sept. 8, 2011
• Obama signs wide-ranging defense bill December 31, 2011
• Obama states support of gay marriage in ABC May 9, 2012
• Obama issues executive order to stop deportation of June 15, 2012
• Supreme Court upholds Obama's health care mandate June 28, 2012
• U.S. President Barack Obama delivers speech at the Sept. 5, 2012
• President Barack Obama and Secretary of State Hillary Sept. 14, 2012

Obama marks Tucson shooting