President Donald Trump sent a series of tweets Tuesday morning that accused Twitter of political bias.

"They don't treat me well as a Republican," he tweeted. "Very discriminatory, hard for people to sign on."

Trump, without citing evidence, has previously accused social-media companies of bias against conservatives.

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President Donald Trump sent a series of tweets Tuesday morning that accused Twitter of political bias.

"They don't treat me well as a Republican," he tweeted. "Very discriminatory." Trump accused Twitter of "constantly taking people off list" and making it "hard for people to sign on," apparently suggesting the company removes followers from his Twitter account and makes it hard for people to follow him.

"Big complaints from many people," he tweeted. "Different names-over 100 M. But should be much higher than that if Twitter wasn't playing their political games."

It appears that Trump believes his follower count would be "much higher" than 100 million followers if Twitter "wasn't playing their political games." Trump's @realDonaldTrump Twitter account had just shy of 60 million followers as of Tuesday morning.

Jack Dorsey, Twitter's cofounder and CEO. Anushree Fadnavis/Reuters

Moreover, Trump called for Congress to regulate Twitter.

"No wonder Congress wants to get involved - and they should. Must be more, and fairer, companies to get out the WORD!" he tweeted.

The White House didn't respond to a request for clarification on Trump's tweets.

Still, it was far from Trump's first time publicly accusing the company of political bias.

"Facebook, Twitter and Google are so biased toward the Dems it is ridiculous!" Trump said in November. "Twitter, in fact, has made it much more difficult for people to join @realDonaldTrump. They have removed many names & greatly slowed the level and speed of increase. They have acknowledged-done NOTHING!" The previous month he made similar claims.

Dorsey arriving for a congressional hearing about Twitter's transparency and accountability. Drew Angerer/Getty Images

Trump has not provided evidence to support his claims against Twitter and other social-media giants.

Tuesday's statements appeared to be connected to Twitter's earning release, as reported by Maria Bartiromo of Fox Business Network. Trump mentioned Bartiromo's Twitter account in his tweets Tuesday, quoting a guest on her show, Daniel Ives, as saying, "The best thing ever to happen to Twitter is Donald Trump."