Prominent conservatives are upset after reviewing a 1994 letter signed by Mitt Romney when he ran for the U.S. Senate in Massachusetts against Sen. Ted Kennedy. In the 1994 letter addressed to the Log Cabin Republicans, a gay Republican group, Romney strongly argued for gay rights. "We must make equality for gays and lesbians a mainstream concern,” Romney wrote, adding that he would be more aggressive than Senator Kennedy in pushing for gay rights. In recent months, Romney has been garnering significant support for his White House bid among grass roots conservatives. Romney has gained points among social conservatives for...