New revelations about the paper-thin look the FBI took into Supreme Court Justice Brett Kavanaugh during his 2018 confirmation fight is a potent reminder that even the nation's highest court is now infected with partisan politics.

Democrats reacted to the news -- which was not all that surprising given that we knew at the time that the FBI was not, in fact, conducting a full inquiry into allegations of sexual misconduct against Kavanaugh -- with outrage.

"The admissions in your letter corroborate and explain numerous credible accounts by individuals and firms that they had contacted the FBI with information 'highly relevant to . . . allegations' of sexual misconduct by Justice Kavanaugh, only to be ignored," wrote seven Democratic senators in response to a letter from the FBI confirming that it received 4,500 tips on Kavanaugh.

"This long-delayed answer confirms how badly we were spun by Director Wray and the FBI in the Kavanaugh background investigation and hearing," said Sen. Sheldon Whitehouse of Rhode Island in a tweet.