LOUISVILLE, KY - FEBRUARY 12: U.S. Senate Majority Leader Mitch McConnell (right) (R-KY) and U.S. Senate Democratic Leader Chuck Schumer (D-NY) stand on the stage together at the University of Louisville's McConnell Center where Schumer was scheduled to speak February 12, 2018 in Louisville, Kentucky. Sen. Schumer spoke at the event as part of the Center's Distinguished Speaker Series, and Sen. McConnell introduced him. (Bill Pugliano/Getty Images)
4 big issues in Senate's immigration debate
01:29 - Source: CNN
Washington CNN  — 

It was supposed to be a raucous, week-long, open floor debate on immigration – the President’s signature issue and such a contentious topic that Democrats shut the government down over it just a month ago.