Sen. Mitt Romney announced he won't run for reelection, citing his age, and urged other older politicians to do the same. Christina Greer, Moynihan Public Scholars Fellow at City College, CUNY, associate professor of political science at Fordham University, host of the podcasts FAQNYC and The Blackest Questions and the author of Black Ethnics (Oxford University Press, 2013), talks about Romney's decision and how much it really had to do with age.