The excursion is at the center of some of the most salacious allegations in a now-famous dossier, which contains unverified charges that Trump has vehemently disputed…

The president has indicated that Schiller will say that the Moscow allegations are false. “Keith was there,” the president told the New York Times in July. “He said, ‘What kind of crap is this?’ I went there for one day for the Miss Universe contest, I turned around, I went back.”

Ty Cobb, the White House lawyer overseeing Russia matters, said Friday that “the White House is delighted that Mr. Schiller will have an opportunity to shed some light on these scandalous allegations, and we are sure that his testimony will be of great interest to all fair-minded people.”