President Trump is actively "undermining" the guidelines developed by the White House Coronavirus Task Force, Olivia Troye, Vice President Mike Pence's former homeland security and counterterrorism adviser, told Andrea Mitchell in an interview that aired during Tuesday's NBC Nightly News.

This was made clear in June, Troye said, when Trump held a rally in Tulsa. Before resigning in July, Troye was a member of the task force, and she said staffers were "scared" to attend the rally because they knew people wouldn't be social distancing. The event was held inside and Trump didn't wear a mask, but none of this surprised Troye. "He's not actually looking out for you," she said. "He's not looking out for these people. He's not looking out for them. He just wants you in that audience so he can have the camera shot of ... his fanfare and the people around him. But the truth is, he's putting those lives at risk."

It was "very challenging" working on the task force, Troye said, because "suddenly the course of what we were doing had changed because that wasn't really what the president wanted. It's very hard when you're trying to actually base things on facts and science and on the data to have a president that wasn't focused on that." Instead, Trump was "really focused on public image, messaging, and it was really more about ... his personal agenda than really the agenda that the task force had at hand, which was how are we going to save and protect Americans."

A lifelong Republican, Troye appeared in a video released last week by the Republican Voters Against Trump organization, which revealed that she is voting for Democratic presidential nominee Joe Biden. In the ad, Troye said Trump "doesn't actually care about anyone else but himself," and once stated that COVID-19 was "a good thing" because he didn't like "shaking hands with people. I don't have to shake hands with these disgusting people."

The White House has accused Troye of being disgruntled, and Pence's national security adviser, retired Lt. Gen. Keith Kellogg, said on Tuesday he "fired her" and claimed what "she has said, I have never heard." On Twitter, Troye said Kellogg "is telling a bald faced lie to protect the president. I resigned on my own accord & was asked to stay. He never escorted me out. He knows this. I wrote a note thanking all the colleagues who had worked so hard with me in spite of POTUS & I stand by that." Catherine Garcia