Jeb Bush endorsed Ted Cruz in the Republican primary. 

I am endorsing @TedCruz. Ted is a consistent, principled conservative who has shown he can unite the party. https://t.co/znDl9GrNZC

— Jeb Bush (@JebBush) March 23, 2016

Politico first reported the story. 

In the announcement, Bush wrote "For the sake of our party and country, we must overcome the divisiveness and vulgarity Donald Trump has brought into the political arena or we will certainly lose our chance to defeat the Democratic nominee, most likely Hillary Clinton, this fall."