c By JIM ABRAMS, Associated Press Writer 32 minutes ago The Republican chairman walked off with the gavel, leaving Democrats shouting into turned-off microphones at a raucous hearing Friday on the Patriot Act. The House Judiciary Committee hearing, with the two sides accusing each other of being irresponsible and undemocratic, came as President Bush was urging Congress to renew those sections of the post-Sept. 11 counterterrorism law set to expire in September. Rep. James Sensenbrenner, R-Wis., chairman of the panel, abruptly gaveled the meeting to an end and walked out, followed by other Republicans. Sensenbrenner declared that much of the...