MADISON, Wis. (AP) - A group of protesters wants U.S. Rep. Tammy Baldwin to lead an effort to impeach President Bush and keep the United States from attacking Iran.

About 20 people organized by MoveOn.org crowded into Baldwin's Madison office and demanded she become a leading voice for impeachment. They also presented her staff with a petition declaring Americans don't want another war and Bush has no authority to attack Iran.

MoveOn's Madison coordinator Patty Zahler says the petition has 1,200 signatures. The organization planned to drop off identical petitions at congressional offices around the country.