Gay Mitt Romney spokesman resigns Richard Grenell, who had worked in previous years in the US mission to the United Nations under Republican President George W Bush, had been hired recently to tackle the foreign affairs portfolio for the all-out-certain Republican nominee Romney. "While I welcomed the challenge to confront President Obama's foreign policy failures ... my ability to speak clearly and forcefully on the issues has been greatly diminished by the hyper-partisan discussion of personal issues that sometimes comes from a presidential campaign," Mr Grenell said in a statement received by the Washington Post. Mr Grenell had been faced with a full frontal assault by some social conservatives opposed to homosexuality, including conservative activist Bryan Fischer, director of issues analysis for the American Family Association. And in conservative magazine National Review, contributor Matthew Franck wrote last week about how Grenell's apparent obsession with gay marriage could damage the Romney campaign. Suppose Barack Obama comes out - as Grenell wishes he would - in favour of same-sex marriage in his acceptance speech at the Democratic National Convention. How fast and how publicly will Richard Grenell decamp from Romney to Obama? Mr Franck wrote. The Romney camp issued a quick response to Grenell's departure. "We are disappointed that Ric decided to resign from the campaign for his own personal reasons," Romney campaign manager Matt Rhoades said in a statement. We wanted him to stay because he had superior qualifications for the position he was hired to fill.