More than 30 talk radio hosts and hundreds of their listeners are scheduled to converge on the nation's capital next week to lobby against comprehensive immigration reform measures that would offer what critics views as "amnesty" to illegal immigrants.

The conservative Federation for American Immigration Reform (FAIR) and San Diego radio talk show host Roger Hedgecock are sponsoring a marathon of talk radio and Capitol Hill lobbying, dubbed "Hold Their Feet to the Fire 2007."

The four-day event will kick off on Sunday, April 22, with a rally near the White House. From Monday through Wednesday, 36 radio hosts will broadcast from the Phoenix Park Hotel near the U.S. Capitol while an estimated 700 volunteers will visit elected officials and urge them to oppose what they consider to be "amnesty."