Here you go....http://www.nationalcenter.org/P21PR-Civility_053111.html
"Many on the progressive side have tried to accuse the tea party movement of having a lack of civility for some of the signs that have appeared at rallies, but the major difference is that the few examples they've been able to cite were the product of private citizens," said Project 21 member Kevin Martin. "In these recent cases involving the left, the radicalism comes from political and public figures — and leaders, in particular. Those who have sought to lecture the public on the issue of civility are now the ones showing a complete lack of it."
That is a stark differentiation you've provided of ordinary citizens versus nationally prominent individuals and leaders.