How credible are reports that Russia has compromising information about Trump?

On Tuesday evening, CNN reported unsubstantiated claims that Russian intelligence compiled a dossier on the president-elect during his visits to Moscow; BuzzFeed later published 35 pages of content from the alleged dossier. But Mr. Trump dismissed the developments as “fake news.” Judy Woodruff speaks with former NSA lawyer Susan Hennessey and former CIA officer John Sipher for analysis.