A quote like: "I welcome the inquiry. We need to get to the bottom of Russia's involvement in our election so that we can prevent it from happening again in the future. I'm confident that the inquiry will also put to rest the rumors of collusion with my campaign. We are prepared to co-operate and provide investigators with any information they seek."
That's what he needed to say.
His staff actually got him to say something close to that. This is the original statement...
“As I have stated many times, a thorough investigation will confirm what we already know — there was no collusion between my campaign and any foreign entity,” Trump said in the statement. “I look forward to this matter concluding quickly. In the meantime, I will never stop fighting for the people and the issues that matter most to the future of our country.”
This is what he said this morning with no staff around...
This is the single greatest witch hunt of a politician in American history!— Donald J. Trump (@realDonaldTrump) May 18, 2017
This man can't be president.