AFP, Warren

Donald Trump promised Tuesday that he is just getting started as he marked the radical and vengeful beginning of a presidency that has shaken the world and destabilized the United States.

Basking in the adulation of cheering supporters in Michigan, the 78-year-old touted the “most successful first 100 days of any administration in the history of our country,” even as polls show Americans becoming disenchanted with the economic and political tumult.

Trump said he missed the campaign trail, and launched with visible relish into a speech that often sounded more like that of a candidate than a head of state.

Joe Biden is “sleepy,” the media is “fake,” judges who oppose him are “communist,” Democratic opponents are “radical left,” and friendly countries have “abused us more so than foe on trade,” Trump said, listing targets of his ire.

The president promised to conclude deals on trade, but provided little in the way of details.

And -- to chants of “USA! USA!” -- he showed a video of migrants in handcuffs and shackles being taken from a plane, transported by bus and filmed on their knees as their heads were shaved, illustrating his controversial deportation policy.

Trump has shaken up the United States like few presidents before him. His billionaire backer Elon Musk has led dramatic cutbacks of the federal workforce, and the president himself has reshaped relations with the world by unveiling sweeping tariffs, berating allies and eliminating much foreign aid.

After a 2017-2021 term in which some aides sought to rein him in, Trump has surrounded himself this time with unabashed loyalists -- and told reporters he was on track to accomplish all of his second-term goals.

“I think either we’ve done everything, or it’s in the process of being done,” Trump said before heading to his rally.

The rival Democratic Party has seized on economic anxieties although it has also struggled in polling.

“Trump is to blame for the fact that life is more expensive, it’s harder to retire, and a ‘Trump recession’ is at our doorstep,” the Democratic National Committee said, calling the 100 days a “colossal failure.”

Even with Congress narrowly in Republican hands, Trump has tested the limits of presidential power by signing more than 140 executive orders, many of which have faced court scrutiny.

He has sought to end birthright citizenship -- which is guaranteed by the US Constitution -- and Musk has summarily axed billions of dollars appropriated by Congress.