With friends like these: GOP race spurs awkward endorsements

FILE - In this Feb. 6, 2016 file photo, Republican presidential candidate Donald Trump shakes hands with then-fellow presidential candidate, former Florida Gov. Jeb Bush as Republican presidential candidate, Sen. Marco Rubio, R-Fla., and Republican presidential candidate, Ohio Gov. John Kasich , in Manchester, N.H. But rarely have so many partnerships of political necessity appeared to be as reluctant, awkward, even downright tortured as in the 2016 GOP race. (AP Photo/David Goldman, File)