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 on Sunday called the results of the Nevada caucuses a “great win” for Sen. Bernie Sanders Bernie SandersNYT editorial board remembers Ginsburg: She 'will forever have two legacies' Two GOP governors urge Republicans to hold off on Supreme Court nominee Sanders knocks McConnell: He's going against Ginsburg's 'dying wishes' MORE (I-Vt.).

Trump congratulated Sanders while speaking to reporters ahead of his trip to India.

"So I think it was a great win for Bernie Sanders. We'll see how it all turns out. They've got a lot of winning to do," Trump said. "I hope they treat him fairly."

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The president also alleged Democrats are treating Sanders "very unfairly" because they do not want him representing the party in the 2020 race.

"He won he had a great victory yesterday, but you know what's happening you can see the handwriting on the wall," he said.

Sanders secured a win in the Nevada caucuses on Saturday, receiving at least 10 delegates from the state. The state still needs to allocate 26 delegates to candidates.

The Vermont senator also won the New Hampshire primary and was the runner-up in Iowa, as the field's moderate candidates split votes.

Trump on Sunday also addressed reports of Russia already meddling in the 2020 election to promote Sanders, saying he had not been briefed on the matter.

"I read where Russia is helping Bernie Sanders. Nobody said it to me at all. Nobody briefed me about that at all ... I have not been briefed on that all," Trump told reporters.

He also accused House Intelligence Chairman 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 (D-Calif.) of releasing information that Russia intended to support Sanders's presidential bid in an effort to sabotage his own campaign. The Washington Post first reported last week that Russia was looking to interfere to boost Sanders’s support.