“There’s been so many investigations of the vice-president. The most comprehensive investigation of the vice-president was when he was vetted by Barack Obama in 2008. I’m very familiar with the vice-presidential vetting process. They look at everything about you,” Perez said on ABC News’ “This Week.”

“They looked at the entire history of Joe Biden, his entire career. And I’ll tell you, if Barack Obama had any indication that there was an issue, Barack Obama would not have had him as his vice-president. Barack Obama trusted Joe Biden. I trust Joe Biden. And those investigations have been done.”

Perez also compared the accusations against Biden, the presumptive Democratic presidential nominee, to the email controversy that dogged Hillary Clinton during the 2016 election.

“This is like the Hillary emails, because there was nothing there,” he said.