US-VOTE-REPUBLICANS

US Senator Ben Sasse, Republican of Nebraska, speaks during the annual Conservative Political Action Conference (CPAC) 2016 at National Harbor in Oxon Hill, Maryland, outside Washington, March 3, 2016. - Republican activists, organizers and voters gather for the Conservative Political Action Conference at a critical moment for the Republican Party as Donald Trump marches towards the presidential nomination and GOP stalwarts consider whether -- or how -- to stop him. (Photo by SAUL LOEB / AFP) (Photo by SAUL LOEB/AFP via Getty Images)