Opponents and supporters chanted outside the district office of Long Island Congressman Peter King who plans hearings on radical Islam.
About 200 noisy but peaceful protesters --split about evenly "for'' and "against'' -- were watched by at least 30 police officers in Massapequa Park.
Christian, Jewish and Muslim opponents of the hearings had billed their event Tuesday as an interfaith "pray-in.''
They're urging the House Committee on Homeland Security chairman not to hold controversial hearings on what he calls the "radicalization'' of some American Muslims.
Some protesters held up crosses or Muslim crescent symbols. King supporters carried signs that read "Don't Tread on Me.''
It wasn't clear whether the Republican lawmaker was at his office.