Sen. Jeff Sessions (R-Ala.), whose hard-line conservative stances on immigration and trade have made him a favorite of the party’s base, endorsed Donald Trump's White House bid during a joint appearance here in his home state Sunday. "Politicians have promised for 30 years to fix illegal immigration. Have they done it? Donald Trump will do it," Sessions said at the Madison City Schools Stadium, where thousands gathered to hear Trump speak. "I've told Donald Trump this isn’t a campaign, this is a movement."