NASHVILLE, Tennessee (Reuters) - A Tennessee Republican congresswoman survived a spirited primary election challenge on Thursday from an opponent whose campaign was based on opposition to Islam and to a new mosque built near Nashville. U.S. Representative Diane Black won the primary election by a comfortable margin over Lou Ann Zelenik, noted for her fierce opposition to the Islamic Center built in Murfreesboro, about 30 miles south of Nashville, although it was outside the congressional district she sought to represent. Zelenik was backed by a wealthy conservative businessman from Nashville, who paid for ads attacking Black over the mosque and Islam. Zelenik charged that Black had not opposed the mosque vigorously. Zelenik pledged during the campaign that if elected she would "work to stop the Islamization of our society, and do everything possible to prevent Sharia Law from circumventing our laws and our Constitution."