He has absolutely lost his mind.
All she did was ask him for evidence that backed up his claims that the election(s) are rigged, and he completely, totally melted down.
Everyone should watch this.
WOW - Trump crashes out & cuts his interview w/ Welker short as she presses him on his lack of evidence for claiming elections are rigged
"You're either crooked or you're stupid. I've had enough. Thank you darling," he tells her"
"I traveled all the way to Wisconsin for this interview," she pleads