The comment came after Ann Romney discussed a research center in her name that the couple plans to launch in Boston on Tuesday. It will study diseases, such as Alzheimer's, Lou Gehrig's and multiple sclerosis.
Romney, a man in demand on the campaign trail for Republicans in the upcoming midterm elections, has repeatedly said he is not running nor planning on running.
But a series of Romney's comments made during public appearances on national TV, radio and while campaigning for Republicans running in congressional and gubernatorial races has left some questioning whether he is finished.
For now, the former Massachusetts governor is content criticizing an unpopular president and telling jokes at his expense.