The bromance is over: Scarborough and Trump get into insane slap-fight
Joe Scarborough and Donald Trump (Screenshots)

"Morning Joe" Scarborough has a long and friendly relationship with current GOP front-runner Donald Trump -- but that seems to have run its course.

Trump and Scarborough on Friday began duking out their differences in the most public way possible -- on Twitter. The argument seems to have started with prolific Twitter user Trump.

Trump then unleashed a criticism of varying accuracy that he often employs against his nemeses -- the idea that they are fading in importance and status.

Scarborough apparently took offense, and defended himself and his show.