Video embedded below.
"A scuffle involving an MSNBC producer and two men who heckled host Chris Matthews was being investigated by security officials Thursday night a few blocks from the Republican National Convention.
Matthews was hosting a show at a makeshift outdoor stage near the Tampa Bay Times Forum after Mitt Romney accepted the GOP presidential nomination. During a break, two men shouted, "Hey Chris, how's that tingle up your leg?" The comment was a reference to Matthews’ 2008 comment that a Barack Obama speech sent a "thrill up his leg."
According to witnesses, a shoving match ensued."