American Catholics, most studies suggest, give significantly less to charity than our Protestant (and for that matter, Mormon) counterparts. If their 2010 tax returns are any guide, it seems this holds true in the subset of Americans running for president as well. Protestant Barack Obama and Mormon Mitt Romney each gave more than 13% of their income to charity, while Catholics Newt Gingrich and Rick Santorum gave less than 3%. (Ron Paul has not publicly released his information.)

 Clayton Sinyai is a trade union activist and the author of Schools of Democracy: A Political History of the American Labor Movement (Cornell, 2006). He is a member of the Catholic Labor Network, the American affiliate of the World Movement of Christian Workers. He can be reached at clayton@catholiclabor.org.