Former Rep. David Jolly (R-FL), an outspoken critic of the GOP since having left it, tore into the candidates running against former President Donald Trump on MSNBC Friday evening, blasting them as unserious candidates running more on their own egos than any tangible alternative to the MAGA movement. This comes as former U.N. Ambassador Nikki Haley, emerging as one of the only noteworthy rivals to Trump as Florida Gov. Ron DeSantis continues to falter in polls, has come under fire for vowing to pardon Trump of any crimes, and for being unable to definitively say the Civil War was about slavery…