Republican presidential candidate Donald Trump has shown he is not one to back down.
In fact, when he was questioned by ABC News today about his assertion that "thousands and thousands of people" cheered the collapse of the World Trade Center on Sept. 11 just across the river in New Jersey, Trump doubled down.
"It did happen. I saw it. It was on television. I saw it," Trump said.
George Stephanopoulos responded, "You saw that with your own eyes? Police say it didn't happen."