Mitt Romney tonight pushed back against those in his party who are questioning President Obama's citizenship, suggesting his fellow Republicans should put their energy into more substantive issues. "The citizenship test has been passed," Romney said tonight on CNBC's Kudlow Report. "I believe the president was born in the United States. There are real reasons to get this guy out of office...but his citizenship isn't the reason why." Several prominent Republicans -- including Donald Trump and Sarah Palin -- have once again tried to stoke controversy by questioning Obama's citizenship even though his birth in Hawaii has been confirmed by...