President Donald Trump took to Twitter on Thursday morning to rip into “Mini Mike” Bloomberg for his terrible performance in the Democratic debate last night.

Trump held nothing back in blasting the former New York City mayor, who was widely criticized for the way he struggled to respond to attacks from his fellow Democrats in his debut debate.

“Mini Mike Bloomberg’s debate performance tonight was perhaps the worst in the history of debates, and there have been some really bad ones,” Trump tweeted. “He was stumbling, bumbling and grossly incompetent. If this doesn’t knock him out of the race, nothing will. Not so easy to do what I did!”

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Bloomberg stumbled frequently during the debate when asked questions by both the moderators and his fellow candidates. In the days prior to the debate, Trump had predicted that Bloomberg would not be able to perform well.

“Mini Mike Bloomberg is a LOSER who has money but can’t debate and has zero presence, you will see,” Trump wrote. “He reminds me of a tiny version of Jeb ‘Low Energy’ Bush, but Jeb has more political skill and has treated the Black community much better than Mini!”

While the Democrats were having their debate, Trump was hosting a rally in Phoenix, Arizona, and he went after Bloomberg there as well.

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“Mini Mike. No boxes. We call him ‘No boxes,’” Trump said, according to Breitbart News. “I hear he is getting pounded tonight, you know he is in the debate. I hear they are pounding him. He spent $500 million so far and I think he has 15 points — hey, fake news, how many points does he have right now? 15?”

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Trump had been saying for weeks that Bloomberg was not an effective presidential candidate for the left, and last night he was proven right once again. While Trump’s personal attacks on Bloomberg may seem cruel at times, it can no longer be denied that the president is right about the former mayor’s abilities.

In attacking Bloomberg, Trump is really just looking out for the best interests of America, as he knows that we deserve a better leader than “Mini Mike” could ever be.