President Donald Trump on Saturday called out Obama administration officials for not taking stronger actions against Russian meddling in the 2016 U.S. election, contradicting his past statements and suggesting without proof that they were trying to help Democratic presidential candidate Hillary Clinton.

His tweets came after The Washington Post revealed Friday that the Obama White House had received reports as early as August 2016 regarding Russian President Vladimir Putin’s direct involvement in the cyber campaign with instructions to defeat or damage Clinton and help to elect Trump, according to “sourcing deep inside the Russian government.”

The Obama administration would not publicly say Russia was attempting to interfere with the election until Oct. 7, and the news of Putin's attempts to aid Trump would not surface until after the election.

Trump has long disputed that the Russians interfered with the election, but on Friday evening, after the publication of The Post’s article, Trump demanded to know why Obama hadn’t done more to stop the meddling.

He tweeted: “The Obama Administration knew far in advance of November 8th about election meddling by Russia. Did nothing about it. WHY?

He followed up with more tweets Saturday.

The Post’s article explains in detail why Obama, who reportedly was gravely concerned by an August CIA report about the hacking, managed to approve only “largely symbolic” sanctions before he left office.

Those reasons included partisan squabbling among members of Congress, initial skepticism by other intelligence agencies about the CIA’s findings, and an assumption that Clinton would win the election and follow up.

“We made the judgment that we had ample time after the election, regardless of outcome, for punitive measures,” a senior administration official said in the article.

Trump, however, raised his own theories, tweeting, “Obama Administration official said they “choked” when it came to acting on Russian meddling of election. They didn’t want to hurt Hillary?”

He provided no explanation or evidence for why this would have helped Clinton.

According to the article, less than a month after 20,000 stolen Democratic Party emails were leaked to the public, a CIA memo warned Obama that the hack had been ordered by Putin in an attempt to “defeat or at least damage the Democratic nominee.”