WASHINGTON – Sen. Lindsey Graham said President Trump is ready to release a trove of documents related to the Russia probe – but the South Carolina Republican recommended caution.

“Yeah, I think he’s ready to declassify everything, but you know, we want to make sure we don’t reveal sources and methods,” Graham said Tuesday.

For months, the president has been thinking about declassifying documents, such as FISA warrant applications.

In November, Trump told The Post he was waiting for an opportunistic time to drop them.

“I think that would help my campaign. If they want to play tough, I will do it. They will see how devastating those pages are,” Trump said at the time.

Graham, who chairs the Senate Judiciary Committee, also said he planned to investigate whether FISA – short for the Foreign Intelligence Surveillance Act – warrants were abused.

In a Monday night appearance on Sean Hannity’s show on Fox News Channel, Graham said the first thing he wanted to look at was “why they got a warrant against Carter Page if the dossier was a bunch of garbage.”

The dossier reference is to a document compiled by an oppo research firm in spring 2016 from anonymous Russian, claiming Trump was compromised by the Kremlin.

The FBI thought Page, a foreign policy aide for the Trump campaign, had been recruited by the Russian government as part of their election interference efforts, according to the redacted FISA warrant application, which has already been publicly released.

When Hannity asked Graham if more of this information should be made public, the senator answered that he planned to use “every tool available to me” and “disclose as much as I can.”

“I would like to hear what the intel people say,” Graham told The Post Tuesday when asked if he thought the president should go ahead and declassify the documents now that special counsel Robert Mueller has completed his investigation.

Graham also said he wasn’t quite ready to turn his attention to the next set of probes.

“What I’m going to do is put Mueller to bed here, I’m going to call [Attorney General William] Barr, I want to have a brief about the Mueller report, and then we’ll move to this other stuff,” Graham said.

The White House didn’t immediately comment.