Vermont Sen. Bernie Sanders is a major critic of billionaires and American corporations who do not “pay their fair share” in taxes.

This week, Bernie Sanders kept up the attack, criticizing the wealth of Amazon’s Jeff Bezos. Bernie tweeted Monday, “You know what Amazon paid in federal income taxes last year? Zero” in response to a report about massive wealth gains by Bezos.

Sanders was criticized by an unlikely source: former Hillary Clinton senior adviser Philippe Reines. Reines tweeted, “You know what SenSanders paid in federal income taxes last year?”

Then Reines called the senator a “Hypocrite.”

After releasing his taxes, Sanders was criticized for being a hypocrite and taking advantage of over $60,000 worth of deductions. National Review wrote of Sanders’s tax release: