Donald Trump has changed his mind about showing his tax returns since entering the race last year. Every major presidential candidate has done so for decades, but Trump now says he won't until an audit is complete.
So billionaire Warren Buffett threw down a challenge at a Hillary Clinton rally in Omaha on Monday.
Buffett, currently ranked as the third-richest person in the world by Forbes, said he was under audit too, but that wouldn't stop him from showing his tax returns.
He also channeled Joseph Welch, the former chief counsel for the U.S. Army, who famously asked then-Senator Joe McCarthy, "Have you no sense of decency?"
Here's Buffet's take on it.
Buffett also attacked Trump's claim that he, like the Khan family whose son died serving the Army in Iraq in 2004, had "sacrificed."
"We've both done extremely well. Our families haven't sacrificed anything," Buffett said.
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