The Last Word with Lawrence O'Donnell 12/27/17

Russia thinks U.S. is meddling in Putin's presidential campaign

Vladimir Putin, the man Trump praised for his leadership, has blocked his most formidable challenger from running in Russia's 2018 election. WaPo Moscow Bureau Chief David Filipov says talk about Putin's challengers is being called meddling. Evelyn Farkas joins. ... more Duration: {{video.duration.momentjs}}