House Energy and Commerce Committee Chairman Fred Upton, R-Mich., left, clasps hands with Sen. John Hoeven, R-N.D., sponsor of the Senate's Keystone XL pipeline bill version, on Wednesday as lawmakers gather to urge President Obama to sign the legislation approving expansion of the Keystone XL pipeline. The House passed the Senate's version of the bill Wednesday afternoon. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

President Obama may not like the bills Congress considers, but he has vetoed only two of them. Chip Somodevilla/Getty Images hide caption

itoggle caption Chip Somodevilla/Getty Images