What was once called a conspiracy theory but is now known as true today?

Everything President Trump has been charged with is a lie.
Climate change is a lie.
Democrats are evil, and are working to destroy this country.
The media and Hollywood are bought and paid for by the Democrats.
The alphabet agencies are all corrupt, and doing the Democrats' bidding.
The election was rigged.
Covid was released intentionally, as will be the next plague, before the election.
The clot shots are killing people.
Gates and company intend to kill a lot more.
Epstein didn't kill himself.
None of the former Clinton associates who killed themselves, killed themselves.
Jan. 6th was staged by the Democrats.

Safe and effective

The CIA assassinated John F. Kennedy.

Covid is same as the flu

Kilary paid for the Russia, Russia hoax

The southern border isn't secure.

"Preparation H" isn't a substitute for toothpaste.

The Steele Dossier. Oh wait , that’s the opposite of turning out to be true .

The biggest ones I can think of are cold war stuff where government denied things that were later confirmed when documents were declassified.

Covid

Ronald Reagan's campaign paid Iran to hold hostages until he was elected to tarnish Jimmy Carter's presidential run and the administration went on to allow a CIA scandle of importing cocaine and selling arms to Iran to fund Contras battling a grass roots leftist army in a foreign country in order to secyre American corporate interests.