President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE in an early morning tweet on Thursday quoted conservative radio host Rush Limbaugh, who said the FBI should have told Trump about concerns of Russian attempts to infiltrate his campaign.

"RUSH LIMBAUGH 'If the FBI was so concerned, and if they weren’t targeting Trump, they should have told Trump. If they were really concerned about the Russians infiltrating a campaign (hoax), then why not try to stop it? Why not tell Trump? Because they were pushing this scam,'" Trump tweeted.

RUSH LIMBAUGH “If the FBI was so concerned, and if they weren’t targeting Trump, they should have told Trump. If they were really concerned about the Russians infiltrating a campaign (hoax), then why not try to stop it? Why not tell Trump? Because they were pushing this scam.” — Donald J. Trump (@realDonaldTrump) May 31, 2018

Multiple government officials told NBC News, however, that Trump was warned after he became the Republican presidential nominee that Russia and other foreign adversaries would probably try to spy on and infiltrate his campaign.

Trump in recent weeks has claimed without evidence that the FBI planted a mole in his campaign and sought to spy on his team for political purposes.

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The informant met with three of Trump's campaign advisers in 2016 in the early months of the counterintelligence investigation into Russia's role in the election

The claims have been panned by critics, who have said the FBI planted the informant in his campaign in an effort to probe Russian interference in the 2016 presidential campaign.

No evidence has emerged to suggest that the FBI improperly spied on Trump's campaign.