Former Republican Rep. Charlie Dent expressed his disgust Wednesday over rioters who stormed the US Capitol building and President Trump's rhetoric that helped sparked the unrest. ""He's committed a mortal crime against the republic," Dent said. "He should have resigned over this, but he won't, of course."" In an interview with CNN's Chris Cuomo and Don Lemon, the former Pennsylvania lawmaker conveyed his anger with a pro-Trump rioter carrying a Confederate flag inside the Capitol building, calling it a "desecration." "I always proudly took my constituents to a plaque right by the east-front Capitol, right by the front door. It's a plaque dedicated to the honorary first defenders from Allentown, Pennsylvania, in Redding, Pennsylvania ... who went to the Capitol, at the call of Abraham Lincoln, to defend the Capitol during the Civil War. ... The confederates never got there. They were there to protect against the rebellion. And here we are, watching Confederate flags running through the Capitol. To see this desecration to me, it's so upsetting as an American, as a Republican. How could this happen?"