In particular, the Republicans and their friends in the media were waving around a very official-looking FBI form with the allegations from the lying witness printed on it, saying that this form proved everything.

Yes. When Wray refused to turn over the confidential information, they threatened to hold him in contempt of Congress. Wray finally agreed to produce the FD-1023 with light redactions to the House Oversight Committee and informed them it was uncorroborated and still under investigation.

They studiously avoided mentioning that the form in question is specifically used simply to record that someone said something that has not been corroborated in any way.

Chuck Grassley then released it on his website to anyone with an internet connection:

https://www.grassley.senate.gov/imo/media/doc/fd_1023_obtained_by_senator_grassley_-_biden.pdf

Hunter Biden might have very good grounds to sue Sean Hannity...

Also sue his employer for defamation.

Also indict Rudy Guiliani's former employer for the weaponization of his own Department of Justice in order to interfere in the 2020 election. Oh, wait.

When congressional Republicans continue to knowingly disseminate Russian disinformation in order to interfere in the 2024 election, have his lawyer send them a cease-and-desist letter and copy Jack Smith. ;)

The GOP we once knew has allowed itself to be overtaken by the Trumpian politics of cultural grievance and a grifting operation of election deniers that doesn't admit defeat, to the point where Trump himself could disappear, but his legacy of kooks and conspiracists is a stench that will long linger. They'll simply double down on the Russian dezinformatsiya and continue their fundraising golden fleece of the gullible rubes. Lather, rinse, and repeat.