Russiagate was a credible accusation that proved to be untrue. Which is a reputational vulnerability Trump will always carry; someone who does international business with countries America has complex socioeconomic and historical ties to will make waves that should come under scrutiny. He could have minimized such scrutiny by divesting himself of his vast real estate empire and he chose not to.

The fact it proved untrue doesn't imply bad faith on the part of the intelligence community, however; it's their job to run leads to ground and determine their veracity.