Chicago Mayor Rahm Emanuel, who in 2006 helped Democrats capture their first House majority in 12 years, on Sunday cast doubt on the party’s chances of reclaiming the chamber again next year. “It took us a long time to get this low. It ain’t going to happen in 2018,” the former White House chief of staff during President Barack Obama’s first term said on CNN’s “State of the Union.” “Take a chill pill, man.