Live: Supporters of Republican presidential candidate, Sen. Ted Cruz, R-Texas, watch a monitor as Sen. Marco Rubio, R-Fla., drops out of the presidential race Tuesday, March 15, 2016, in Houston. (AP Photo/David J. Phillip)
Live: Supporters of Republican presidential candidate, Sen. Ted Cruz, R-Texas, watch a monitor as Sen. Marco Rubio, R-Fla., drops out of the presidential race Tuesday, March 15, 2016, in Houston. (AP Photo/David J. Phillip) David J. Phillip AP
Live: Supporters of Republican presidential candidate, Sen. Ted Cruz, R-Texas, watch a monitor as Sen. Marco Rubio, R-Fla., drops out of the presidential race Tuesday, March 15, 2016, in Houston. (AP Photo/David J. Phillip) David J. Phillip AP