Fox's Chris Wallace says Biden campaign turned down interview request: 'We'll keep asking'

Fox News's Chris Wallace informed viewers on Sunday that presumptive Democratic presidential nominee Joe Biden's campaign said the former vice president was "not available" for an interview after President Trump said Biden couldn't handle tough questioning from the "Fox News Sunday" host.

"In our interview last week with President Trump, he questioned whether his Democratic opponent, Joe Biden, could handle a similar encounter,” Wallace said. “This week, we asked the Biden campaign for an interview and they said the former vice president was not available.”

“We’ll keep asking every week," he added.