If you are questioning if Cassie Hutchison's credibility should be questioned, consider Tony Ornato's loyalties:

Trump photo op at St. John's Church:
"Secret Service official Anthony Ornato, who had received the unprecedented permission to temporarily take a leave of absence to become a White House political advisor, had reportedly organized the photo-op."

https://en.wikipedia.org/wiki/Donald_Trump_photo_op_at_St._John%27s_Church