Abusive, derogatory and even racist behavior directed at House Democrats by Tea Party protesters on Saturday left several lawmakers in shock.

Preceding the president's speech to a gathering of House Democrats, thousands of protesters descended around the Capitol to protest the passage of health care reform. The gathering quickly turned into abusive heckling, as members of Congress passing through Longworth House office building were subjected to epithets and even mild physical abuse.

A staffer for Rep. James Clyburn (D-S.C.) told reporters that Rep. Emanuel Cleaver (D-Mo.) had been spat on by a protestor. Rep. John Lewis (D-Ga.), a hero of the civil rights movement, was called a 'ni--er.' And Rep. Barney Frank (D-Mass.) was called a "fa-got," as protestors shouted at him with deliberately lisp-y screams. Frank, approached in the halls after the president's speech, shrugged off the incident.

But Clyburn was downright incredulous, saying he had not witnessed such treatment since he was leading civil rights protests in South Carolina in the 1960s.

"It was absolutely shocking to me," Clyburn said, in response to a question from the Huffington Post. "Last Monday, this past Monday, I stayed home to meet on the campus of Claflin University where fifty years ago as of last Monday... I led the first demonstrations in South Carolina, the sit ins... And quite frankly I heard some things today I have not heard since that day. I heard people saying things that I have not heard since March 15, 1960 when I was marching to try and get off the back of the bus."

"It doesn't make me nervous as all," the congressman said, when asked how the mob-like atmosphere made him feel. "In fact, as I said to one heckler, I am the hardest person in the world to intimidate, so they better go somewhere else."

Tea party protesters call Georgia's John Lewis ''n-word''

WASHINGTON — Demonstrators outside the U.S. Capitol , angry over the proposed health care bill, shouted "'n-word'" Saturday at U.S. Rep. John Lewis , a Georgia congressman and civil rights icon who was nearly beaten to death during an Alabama march in the 1960s. The protesters also shouted obscenities at other members of the Congressional Black Caucus , lawmakers said.