Iowa Congressman Steve King, FRC Action President Tony Perkins and presidential hopeful Rick Santorum will board the National Organization for Marriage's (NOM) tour bus against 3 Iowa Supreme Court judges who ruled in favor of gay marriage.

The New Jersey-based NOM, the Washington-based Family Research Council (FRC) and the Iowa Family Policy Center (IFPC) will hit the road starting Monday, October 25. The bus is expected to make 20 stops in 4 days in a campaign to oust three of the seven justices who unanimously legalized gay marriage in Iowa.

Chief Justice Marsha Ternus and Justices David Baker and Michael Streit have been marked for ouster by opponents of the institution. The other four judges are not on the ballot this year.

“If the Iowa Supreme Court will do this to marriage, every one of our freedoms, including gun rights and private property, is in danger of being usurped by activist judges who are unelected officials. Most Americans believe that government is out of control. Now is the time to take a stand against the radical judicial activism of the Iowa Supreme Court,” Perkins said in a statement.

The campaign, titled Judge Bus Tour, will end on Thursday with a rally at the Iowa Supreme Court.