For saying mosques should be monitored, which I have long insisted. Romney should not apologize untik such time as self-proclaimed moderate Muslims take genuine steps to separate jihadists from their ranks. So far, that is not happening. From [1] AP, :

The groups, which included the American Civil Liberties Union and various mosques and Islamic organizations, delivered a letter to Romney, which said "your desire to wiretap mosques is an affront to the values and principles that make America a great country."

"As religious, community, and student leaders, we expect far more from our elected officials. Your remarks have failed us," said Caline Jarudi, director of the American Arab Anti-Discrimination Committee.

Spokesman Eric Fehrnstrom said the governor would not apologize or retract the comments.