U.S. tops 2020 list of global risks, outranking Middle East

Every year the Eurasia Group, a political risk consulting firm, ranks the top 10 geopolitical risks we're likely to see. For the first time, in 2020, a U.S. domestic issue tops the list, outranking Iran, Turkey and Latin America. Ian Bremmer, the president and founder of the Eurasia Group, joins "CBS This Morning" to discuss why.