It may not be an exact comparison, given changes in both popular media and US culture, but Huey Long (1893-1935) is possibly one of the closer comparisons.
A wildly popular populist demagogue, Long similarly set about expelling political opponents from the government system following his election and engaging in political maneuvering and strongarming which ultimately got him impeached (though, like Trump, the effort collapsed before before long). His efforts included setting up Louisiana state boards which directed the distribution of state money to political allies, a move to deny hostile newspapers “official printer” status, worked with a businessman to create an oil company which profited from public lands allotted to it, produced his own newspaper which published positive stories, and other similarly totalitarian moves.
However, it must also be noted that unlike Trump, Long actually achieved many populist goals, such as dramatically expanding the road system and increasing school enrollment. He was hostile to Roosevelt’s New Deal, claiming it was actually insufficiently populist and overly friendly to businesses, but also was highly isolationist and opposed to US involvement leading up to World War II.
Long was assassinated in 1935 by the son of a political opponent. Most believe he was shot by the assassin, though some believe his bodyguards accidentally shot him in confusion after the assassin missed.
Agreed. And it wasn’t just blind trust in his promises despite a lack of deeds, unlike Trump’s wild promises. Like I said, Long actually managed to achieve many positive things for the working-class Louisianian. I also didn’t mention it, but he was remarkably hostile to racism for a 1930s Louisiana politician; one of his issues with the Social Security system implemented by Roosevelt was that individual states might deny its benefits to African Americans.
I do wonder if he would have remained so benevolent indefinitely - there is the aforementioned secret control of an oil company profiting from State-owned lands, whose profits Long used for political purposes - but at the same time I can’t deny he did a lot of objectively good things which helped the people who needed it the most, was rightly beloved for it, and didn’t seem to be stepping away from it in his future plans.
If nothing else, he’s a fascinating study on how the political positions associated with populism have shifted over time in the US.