President Donald Trump began his Sunday morning venting about 'Saturday Night Live,' complaining the show should be investigated by federal regulators for mocking him but not Democrats.

The president complained their treatment of him was 'like an advertisement without consequences' and a boost to help Democrats.

'It's truly incredible that shows like Saturday Night Live, not funny/no talent, can spend all of their time knocking the same person (me), over & over, without so much of a mention of 'the other side.' Like an advertisement without consequences. Same with Late Night Shows,' he wrote on Twitter.

President Trump began his Sunday morning venting about 'Saturday Night Live'

He complained about the show's parody of him as Alec Baldwin (seen here in a February episode) often portrays him as a bumbling commander in chief

Last night's 'Saturday Night Live' was a repeat featuring a parody of 'It's a wonderful life'

And he added: 'Should Federal Election Commission and/or FCC look into this? There must be Collusion with the Democrats and, of course, Russia! Such one sided media coverage, most of it Fake News. Hard to believe I won and am winning. Approval Rating 52%, 93% with Republicans. Sorry! #MAGA'

The late night sketch-comedy show is currently in repeats - with a new episode returning March 30.

Saturday night's repeat featured a parody of 'It's a Wonderful Life' with Trump shown imagining his life if he had never been elected president.

The program has long used the president as a punching bag.

Actor Alec Baldwin frequently lampoons the president as a fumbling, incompetent commander in chief.

But presidents, no matter their party, are often mocked by the program.

President Trump questioned whether the Federal Election Commission or Federal Communications Commission should investigate.

The FEC examines improper campaign contributions while the FCC originated the fairness doctrine - a regulation that requires the news give equal time to both sides. However the doctrine was discontinued in 1987 and is no longer on the books. Additionally, when it was used by the FCC as a method of distributing television and radio licenses, it was found not to apply to elected officials.

Also, 'Saturday Night Live' is a comedy show and its satire is protected free speech.

The show has parodied Hillary Clinton with Kate McKinnon playing the former presidential candidate during the 2016 campaign.

Trump has long railed against the media's treatment of him and has a habit of declaring stories and items he doesn't like 'fake news.'

He's also threatened 'Saturday Night Live' before.

Just last month the president suggested his government should look carefully at comedic 'hit jobs' against Republicans.

'Nothing funny about tired Saturday Night Live on Fake News NBC!' Trump blasted in a Sunday morning tweet on February 17. 'Question is, how do the Networks get away with these total Republican hit jobs without retribution? Likewise for many other shows? Very unfair and should be looked into. This is the real Collusion!'

Trump has been fighting claims for more than two years that his 2016 campaign colluded with agents of the Kremlin to impact the result of the presidential election.

The concept of a hopelessly biased political press corps is one argument that buoyed Trump's first candidacy, and which campaign insiders say he will return to repeatedly as he runs in 2020.