CNN host Anderson Cooper is claiming he was hacked after his Twitter account responded to a tweet from 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 by calling the president a "pathetic loser."

Trump on Wednesday morning tweeted that GOP Senate candidate Roy Moore worked hard in the Alabama special election, but that the "deck was stacked against him."

"The reason I originally endorsed Luther Strange Luther Johnson StrangeSessions hits back at Trump days ahead of Alabama Senate runoff The biggest political upsets of the decade State 'certificate of need' laws need to go MORE (and his numbers went up mightily), is that I said Roy Moore will not be able to win the General Election. I was right! Roy worked hard but the deck was stacked against him!" Trump tweeted.

Cooper's Twitter account said in response: "Oh Really? You endorsed him you tool! Pathetic loser."

Oh Really? You endorsed him you tool! Pathetic loser. — Anderson Cooper (@andersoncooper) December 13, 2017

Following the tweet, CNN Communications tweeted that someone had gained access to the Cooper's account.

This morning someone gained access to the handle @andersoncooper and replied to POTUS. We're working with Twitter to secure the account. — CNN Communications (@CNNPR) December 13, 2017

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Cooper also said he "woke up to find out someone gained access" to his Twitter account.

"Just woke up to find out someone gained access to my twitter account," Cooper tweeted.

"I have not sent a tweet in days or replied to any tweets. We are looking into how this happened."

The tweets comes after Democrat Doug Jones on Tuesday defeated Moore in the Alabama Senate special election to serve out the remainder of Attorney General Jeff Sessions Jefferson (Jeff) Beauregard SessionsGOP set to release controversial Biden report Trump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status MORE's term.

Jones is the first member of his party to win a Senate seat in the state since 1992.