Reconstructing the Russian hacks leading up to the election

Reports that the CIA believes Russia sought to help the president-elect win the election by hacking Democratic political organizations has rocked the nation. Mr. Trump dismisses claims that Russia had any influence in the process or that it wanted him in office. Hari Sreenivasan examines what investigations have revealed with Dmitri Alperovitch of Crowdstrike and Eric Lipton of The New York Times.