Marco Rubio regrets his personal attacks against Donald Trump, he told MSNBC Wednesday. "In terms of things that have to do with personal stuff, yeah, at the end of the day it's not something I'm entirely proud of," Rubio told the network in an excerpt of a town hall airing Wednesday night. "My kids were embarrassed by it, and if I had to do it again I wouldn't." Rubio had previously shied away from direct confrontation with Trump, but he burst out of the gate in the last debate before Super Tuesday by emptying the opposition research file against Trump
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