Rudy Giuliani, a focus of the impeachment inquiry into Donald Trump's foreign policy dealings, suggested he has dirt on the Biden family that would be released were he to get into trouble — after earlier hinting he has a plan if he should fall out of favor with the president.

Giuliani, Trump's personal lawyer, described on Twitter Saturday as "sarcastic" recent comments, on Fox News and elsewhere, about having "an insurance policy" against the president, and instead pivoted to Biden.

That followed a Fox News interview during which he was asked whether Trump might soon conclude that Giuliani is a liability, and throw him "under the bus."