Donald Trump Jr. on Wednesday suggested the media has helped Hillary Clinton by letting her “slide” on “every lie” and said that if Republicans did the same, the media would be “warming up the gas chamber” for them.

“The media has been her number one surrogate in this,” he said in an interview on 1210 WPHT radio in Philadelphia with host Chris Stigall. “Without the media, this wouldn’t even be a contest, but the media has built her up. They’ve let her slide on every in-discrepancy, on every lie, on every DNC game trying to get Bernie Sanders out of this thing. If Republicans were doing that, they’d be warming up the gas chamber right now.”

Nazi Germany used gas chambers during the Holocaust to kill millions of Jews and others, and are now often used in Holocaust references.

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In another interview Wednesday with the Pittsburgh Tribune-Review, Trump was asked why his father, the GOP presidential nominee, hasn’t released his tax returns yet. Instead of repeating Trump’s argument that he’s under audit, his son suggested that people across the country would scrutinize them.

When asked why his father has not released his tax returns as presidential candidates have traditionally done, Trump Jr. said, “Because he’s got a 12,000-page tax return that would create … financial auditors out of every person in the country asking questions that would detract from [his father’s] main message.”