" On Wednesday, the director of national intelligence, James Clapper, called Mr. Trump to tell him that the leak of the material did not come from U.S. agencies and that the intelligence community had made no judgment on the credibility of the claims."

Obviously for reasons of national security, the intelligence community must further investigate these claims and make a judgment one way or the other. If they are true, Trump is essentially owned by Putin. 
If not, Americans have the right to know.