US Vice President Mike Pence says he'd agree to take a lie detector test "in a heartbeat" to prove he isn't the author of an anti-Trump New York Times opinion piece.
A top Pence aide has already said the vice president didn't write the anonymous piece criticising President Donald Trump's leadership.
Republican senator Rand Paul of Kentucky has said Trump would be justified in using lie detectors to ferret out the anonymous essay writer. Trump hasn't said whether he'd go that far, but Pence says he's willing.
Pence said during a taped Fox News Sunday interview: "I would agree to take it in a heartbeat and would submit to any review the administration wanted to do."
Pence added he doesn't know the author's identity but repeated that the individual should resign.
He also said he was "100 percent confident" no one on his staff was involved with the anonymous column.
Pence told Sunday's edition of CBS' Face the Nation that he hasn't polled staffers about the opinion piece because "I know them. I know their character."
The vice president said his aides were as dedicated as he was to advancing Trump's agenda.
Pence also says he hadn't been asked for an interview by special counsel Robert Mueller as part of the investigation into Russian interference in the 2016 presidential election. He said he was willing to sit down with Mueller if asked.
Australian Associated Press