DAYTON, Ohio — A political firestorm over abortion and birth control is spreading on multiple fronts.

A high-ranking official resigned from the Komen breast-cancer charity Tuesday after its hard-fought peace agreement with Planned Parenthood.

And Catholics are assailing an Obama administration ruling on contraception.

Republican presidential candidates are trying to take advantage of what they consider a blunder by President Barack Obama. They believe his new federal rules covering Catholic hospitals will alienate moderate Catholics who may support contraception but don't want the government to tell the church how to run its hospitals.

But Democrats suggest the ruling will find wide support among voters of all stripes.