President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE questioned Monday why former President Obama didn’t take action on Russian interference in the 2016 election, despite Obama having implemented sanctions against the country over its meddling.

Obama was President up to, and beyond, the 2016 Election. So why didn’t he do something about Russian meddling? — Donald J. Trump (@realDonaldTrump) February 19, 2018

The tweet comes just days after special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE indicted more than a dozen Russians and three Russian groups for election interference.

Trump has tweeted about Moscow's hacking and the U.S. investigations into it multiple times across the Presidents Day weekend, which he is spending at his Mar-a-Lago resort in South Florida.

I never said Russia did not meddle in the election, I said “it may be Russia, or China or another country or group, or it may be a 400 pound genius sitting in bed and playing with his computer.” The Russian “hoax” was that the Trump campaign colluded with Russia - it never did! — Donald J. Trump (@realDonaldTrump) February 18, 2018

If it was the GOAL of Russia to create discord, disruption and chaos within the U.S. then, with all of the Committee Hearings, Investigations and Party hatred, they have succeeded beyond their wildest dreams. They are laughing their asses off in Moscow. Get smart America! — Donald J. Trump (@realDonaldTrump) February 18, 2018

Obama issued sanctions against Russia for the meddling after U.S. intelligence officials said they had found evidence that the country had hacked U.S. groups and leaked emails in an effort to influence the 2016 vote.

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He also expelled 35 Russian diplomats from the U.S. and ordered two Russian compounds to be closed.

Former Vice President Joe Biden Joe BidenMomentum growing among Republicans for Supreme Court vote before Election Day Trump expects to nominate woman to replace Ginsburg next week Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral MORE said earlier this year that Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellMomentum growing among Republicans for Supreme Court vote before Election Day Trump expects to nominate woman to replace Ginsburg next week Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral MORE (R-Ky.) refused to join a bipartisan statement warning Russia against the interference during the election.

Some Democrats, including Rep. Adam Schiff Adam Bennett SchiffTop Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence Overnight Defense: Top admiral says 'no condition' where US should conduct nuclear test 'at this time' | Intelligence chief says Congress will get some in-person election security briefings Overnight Defense: House to vote on military justice bill spurred by Vanessa Guillén death | Biden courts veterans after Trump's military controversies MORE (Calif.), have acknowledged that the Obama administration could have done more to prevent the election meddling.

Democrats have criticized Trump for declining to implement new sanctions against Russia that passed Congress last year by overwhelming, bipartisan margins.

A State Department spokesperson said earlier this year that the legislation allowing for the sanctions was already "serving as a deterrent" and there was no need to penalize Russia further at this time.