Donald Trump on Sunday appeared to threaten to expose information on Lt. Col. Alexander Vindman, the decorated veteran who reportedly testified that the president omitted certain key words and phrases from the White House’s memo of the Ukraine phone call at the center of an impeachment inquiry. While speaking to reporters outside the White House, Trump repeated unfounded claims that Vindman is a “Never Trumper,” a label he also bestowed on former Ukraine Ambassador William Taylor after his impeachment inquiry testimony outlined how Trump officials made demands of the Ukrainian government in exchange for investigations into the Bidens.

Vindman, a decorated Iraq War veteran and National Security Council official, reportedly testified that he was instructed by White House counsel John Eisenberg to keep quiet about the call after voicing his concerns. “It’s a whole scam... it’s between the Democrats and the fake news media,” Trump said of the inquiry. When asked what evidence he had that Vindman is a “Never Trumper,” the president responded: “We’ll be showing that to you real soon.”