Jeb Bush unleashed tough rhetoric against Donald Trump calling him a “loser” who just happens to be “just a real estate guy.”

Monday on MSNBC’s “Morning Joe,” panelist Mark Halperin asked Bush where he stood in his “attempt to try to define” Trump and Bush said, “I don’t know, this is an unique experience.” (RELATED: Watch Jeb Bush Squirm Through Almost A Minute Of Donald Trump’s Insults [VIDEO])

“Trump is recently became a Republican, so no one’s had this experience dealing with the guy,” he added. “But I find it remarkable when you have the chance to talk about his temperament, as [crscore]Ted Cruz[/crscore] was, and he totally ignored it. Or when Rubio had a chance to say Trump is not a conservative, which he’s not, he totally ignored it. I mean, you don’t confront a bully that way.” (RELATED: Jeb: Trump’s Unpresidential For Telling Me To ‘Shush’ [VIDEO])

Co-host Joe Scarborough interjected, suggesting that the reason Cruz and Rubio didn’t confront Trump was because “they’re scared of him.”

Bush replied, “It’s just ridiculous, I mean the guy, he’s you know, he’s just a real estate guy. I mean, he’s gone bankrupt four times, he’s a successful man but he’s not perfect by any stretch of the imagination so why not confront him, challenge him.”

As Mediaite noted, later co-host Mika Brzezinski asked Bush to play a word association game and Bush said Trump was a “loser,” Chris Christie was “great guy,” Rubio was  a “work in progress,” and Hillary Clinton, “she can be beat.” (RELATED: Jeb Bush Calls Donald Trump ‘A Jerk’ [VIDEO])

Scarborough later asked Bush “What about Bernie” and Bush said, “I love the ad… that’s the best ad I’ve seen. Simon and Garfunkel came back man, there’s nothing wrong with that.”

WATCH:

Follow Steve on Twitter and Facebook