WASHINGTON – A lawyer for Donald Trump said Sunday the president is not under federal investigation despite his posting on Twitter that he was and decrying the probe as a “WITCH HUNT.”

“The president is not under investigation by the special counsel,” Jay Sekulow, a member of Trump’s legal team, told NBC’s “Meet the Press.”

Trump seemed to acknowledge he was the target of a federal probe on Friday by tweeting: “I am being investigated for firing the FBI Director by the man who told me to fire the FBI Director! Witch Hunt.”

Sekulow dismissed Trump’s tweet as merely a social media reaction to a Washington Post story announcing federal investigators have opened an inquiry for obstruction of justice.

“The Washington Post issued a story that had five anonymous sources, which they never identified what agencies those sources originated out of,” Sekulow said. “The response from the president, using social media, was about that story.”

Sekulow says he believes the president would have been officially informed if he were the target of a probe.

“We’ve received no notice of investigation.” Sekulow added on CBS’ “Face the Nation.” “There has been no notification from the special counsel’s office that the president is under investigation.”

Former Brooklyn federal prosecutor Brad Simon called Sekulow’s assertion “somewhat fanciful.”

The feds “never formally advise someone they’re under investigation,” Simon said, adding: “It usually becomes apparent when they start issuing subpoenas.”

In some cases, Simon said, the feds will issue a “target letter” following a grand jury subpoena, usually when a defense lawyer is trying to decide whether to let a client testify.

“The fact that [Trump] hasn’t received a letter doesn’t mean he’s not the subject of an investigation,” Simon said.

“Letters are only issued upon request. That’s the the long-established practice of the Justice Department.”

Fired FBI Director James Comey testified earlier this month he felt Trump directed him to shut down a criminal investigation into Michael Flynn, Trump’s former national security adviser.

Comey said he leaked his memo of Trump’s demands indirectly to the New York Times in hopes of sparking the appointment of a special counsel.

It worked.

Deputy Attorney General Rod Rosenstein soon named Robert Mueller to take over the Russia investigation and reportedly is now looking into whether Trump tried to obstruct justice for pressuring investigators.

Sekulow noted Trump had gotten assurances from Comey that he was not under investigation in the broader investigation into Russia’s meddling in the 2016 presidential election.

“What we know is what James Comey said – the last thing we know is when he testified just a couple weeks back – that the president was not and is not a target of investigation,” he said.

NBC’s Chuck Todd then asked why Trump seems so obsessed the FBI Russia investigation on Twitter.

“If the president is innocent, why is he afraid of this investigation?” Todd pressed.

“He’s not afraid of the investigation,” Sekulow said. “There is no investigation.”