Sen. Jeff Flake, R-Ariz., on Wednesday decried a social media post by the president's eldest son, Donald Trump Jr., which mocked sexual assault allegations against Supreme Court nominee Brett Kavanaugh.

"This is sickening," Flake wrote on Twitter. "No one should make light of this situation."

FLAKE TWEET

On Sunday, the 40 year-old Trump Jr. posted a photo on Instagram which he sarcastically claimed was a copy of the letter that professor Christine Blasey Ford sent to Sen. Dianne Feinstein, D-Calif., in July.

In it, Ford alleged that Kavanaugh had sexually assaulted her when they were teenagers. Ford later described to The Washington Post what she said was a violent attempted rape by Kavanaugh.

Trump Jr. ridiculed the allegation. "Oh boy... the Dems and their usual nonsense games really have him on the ropes now. Finestein [sic] had the letter in July and saved it for the eve of his vote... honorable as always. I believe this is a copy for full transparency," he wrote.

But instead of posting a letter, Trump Jr. posted an internet meme of a crumpled up love note from a boy named "Bret" to a girl named "Cindy." The photo is titled "Judge Kavanaughs sexual assault letter found by Dems."