** FILE ** President Barack Obama speaks at General Electric's gas engine facility in Waukesha, Wis., on Thursday, Jan. 30, 2014. (AP Photo/Milwaukee Journal-Sentinel, Mike De Sisti, Pool)
Vice President Joseph R. Biden and former Secretary of State Hillary Rodham Clinton will have a hard time cutting their ties to the Obama administration if they run for president in 2016. (Associated Press)
Sen. Kelly Ayotte, New Hampshire Republican, calls the Justice Department's move "another example of the Obama administration imposing its will on the states."
President Barack Obama walks from Marine One as he arrive on the South Lawn of the White House, Friday, Feb. 7, 2014, in Washington, as he returns from Michigan. (AP Photo/Carolyn Kaster)