President Donald Trump. Alex Brandon/AP Images

President Donald Trump reportedly thinks Russia wasn't behind the 2016 election hacking because it wouldn't have allowed itself to get caught.

US intelligence officials believe Russia left behind evidence of hacking to sow chaos.

Intelligence officials think Russia views the hacking campaign as successful and will try again.

President Donald Trump's new communications director, Anthony Scaramucci, told CNN host Jake Tapper on Sunday that Trump was not convinced that the Russians hacked into the Democratic National Committee last year because if they did, he said, they wouldn't have gotten caught.

"Somebody said to me yesterday that if the Russians actually hacked this situation, and spilled out those emails, you would've never seen it — you would've never had any evidence of that," Scaramucci said in an interview on "State of the Union."

"They're super confident in their deception skills and hacking."

Scaramucci then revealed that the theory came from Trump, who Scaramucci said called him from Air Force One on Saturday and "basically said to me, 'Hey, you know, maybe they did do it, maybe they didn't do it.'"

The notion that Moscow would have tried to conceal its efforts, however, differs from what experts and intelligence officials have concluded was the main purpose of Russia's election interference: to sow chaos and undermine the legitimacy of the election, no matter who won.

'Loud' for a reason

The Russians "were unusually loud in their intervention," James Comey said during a House Intelligence Committee hearing in March, two months before he was fired as FBI director. "It's almost as if they didn't care that we knew," he added.

Comey suggested that Russia may have wanted the US government to tell the public what Russia was doing so as to "amplify" its efforts.

"Their loudness, in a way, would be counting on us to amplify it by telling the American people what we saw and freaking people out about how the Russians might be undermining our elections successfully," Comey said.

Many cybersecurity and Russia experts share the view that Russia carried out a highly conspicuous hacking and disinformation campaign throughout the election.

Digital footprints on the Democratic National Committee and Hillary Clinton campaign hacks were easy to link back to the Kremlin, as state-sponsored Russian news agencies like Russia Today and Sputnik openly backed Trump.

American eavesdroppers, meanwhile, reportedly intercepted calls between foreign nationals and Russian officials discussing the presidential campaign — and between Trump's eventual national security adviser Michael Flynn and Russia's ambassador to the US, Sergey Kislyak, discussing sanctions — a similarly sloppy move, given the open secret that intelligence agencies routinely spy on one another.

Trump with Russian President Vladimir Putin. AP

Automated Twitter accounts — many of them linked to Russia and aided by professional trolls being paid by the Kremlin — flooded Twitter with pro-Trump rhetoric and made-up news throughout the campaign and especially in the days leading up to the election.

The bots favored Trump by five to one, according to Sam Woolley of the Oxford Internet Institute’s computational propaganda research team.

The propaganda effort did not go unnoticed by the intelligence community.

"A big difference to me in the past was, while there was cyberactivity, we never saw in previous presidential elections information being published on such a massive scale that had been illegally removed both from private individuals as well as organizations associated with the democratic process both inside the government and outside the government," Adm. Mike Rogers, the director of the National Security Agency, said at the March hearing.

Thomas Pickering, who served as US ambassador to Russia under Bill Clinton, told CNN at the time that the flagrant nature of the operation "was unusual."

"Putin clearly wanted to deal the US a lesson, which helped him promote his own national popularity at home," Pickering said of the Russian president, Vladimir Putin.

Mark Kramer, the program director of the Project on Cold War Studies at Harvard's Davis Center for Russian and Eurasian Studies, told Business Insider that this kind of noise aligned with Putin's desire to "stir public doubts about the legitimacy of the elections in part because he expected Clinton was going to win."

"He wanted to portray her election as unfair and illegitimate," Kramer said.

Bundesregierung Facebook

Indeed, Comey said in March that the Russians "hated her, Secretary Clinton, wanted to harm her and thought they might have a chance to help Mr. Trump."

"And then later," he continued, "they concluded that Mr. Trump was hopeless and they would focus then on just trying to undermine Secretary Clinton."

Putin denied last month that the Kremlin had ordered the cyberattacks. But he said that "patriotically minded" Russians, whom he compared to artists, might have taken it upon themselves "to fight against those who say bad things about Russia," according to The New York Times.

While she was secretary of state, Hillary Clinton questioned whether Russia's 2011 elections were "free, fair, transparent" and called for a "full investigation" of the elections' irregularities. Mass anti-government protests broke out in Russia shortly thereafter, and Putin blamed them largely on Clinton's comments.

'We have to assume they're coming back'

Comey and Rogers asserted at the March hearing that the Russians most likely viewed the operation as successful given the near-daily revelations about the Trump campaign's contact with Russia. Those revelations now include recently disclosed meetings between Donald Trump Jr. and two Russians in June of last year and between Jared Kushner and the CEO of a sanctioned Russian bank in December.

Kushner and the CEO, Sergey Gorkov, reportedly discussed setting up a back channel to bypass NSA and FBI eavesdroppers.

Reports emerged after the inauguration in January that the Kremlin was getting nervous about the chaos, because the government had been counting on Trump to improve the US-Russia relationship.

But Comey said something Russia "may draw from this is that they were successful because they introduced chaos and division and discord, and sowed doubt about the nature of this amazing country of ours and our democratic process."

"Their number one mission was to undermine the credibility of our entire democracy enterprise of this nation," Comey said at the time.

Rogers agreed.

"I fully expect them to continue this — this level of activity," Rogers said. "Our sense is that they have come to the conclusion that it generated a positive outcome for them in the sense" that they've called into question the US's democratic process.

"We have to assume they're coming back," Comey said.