An analyst has a theory about President Donald Trump's major worry — and asking "what are the chances that MAGA will outlive Trump?"

Trump is afraid the Supreme Court will take action to remove his retaliatory tariffs and challenge his economic moves, Salon columnist Heather Digby Parton writes Thursday.

"Besides the recent concerns he expressed about the state of his soul, he fears the Supreme Court will strip him of his tariff privileges," Digby Parton writes. "We know this because he had a temper tantrum upon hearing that Ontario had produced a television advertisement featuring President Ronald Reagan criticizing tariffs — a response that was revealing, both about his mindset and strategy, and about how MAGA has turned away from Reagan’s once-mythic legacy."

Trump had a strong reaction to the brutal advertisement that aired last weekend during the World Series. His response also highlights some of the shifts happening among MAGA — and what the future looks like, Digby Parton wrote.

"Many of the staunch Reaganites who once believed in free markets, small government, private enterprise, international institutions and the 'Pax Americana' guarantor of global security are now MAGA aficionados, enthusiastically endorsing every scheme Trump comes up with, from state capitalism to trade wars," Digby Parton writes.

"Unlike the movement Reagan represented, there’s no long term education project, no underlying ideology, no commitment to principles. One day the administration is full force America First isolationism, and the next finds itself blowing up boats full of civilians in international waters, with the president proclaiming 'to the victors go the spoils.'"

It's unclear what Trump's legacy might be, she adds.

"Does that erratic philosophy sound like something that can last? If the conservative movement that endured for decades can be stripped, virtually overnight, of everything but the ugly underbelly of crude racism and revanchist anger that fueled it, what are the chances that MAGA will outlive Trump?"