SUGAR LAND, Texas - Supporters of U.S. Rep. Tom DeLay protested at an event Thursday held by the Democratic candidate for the congressman's seat, and the event quickly dissolved into a shouting and shoving match. Police were called, but made no arrests. "I got pushed. I got hit. I got a sign wadded up in my face and my hat pulled down over my eyes," said Marsha Rovai, 69, a supporter of Nick Lampson. "They just did it to be nasty." DeLay campaign manager Chris Homan said he organized the protest but DeLay, a Republican, didn't know about it. "Mr....