President Donald Trump remained defiant on Monday as global markets continued plunging after his tariff announcement last week.

He said other countries had been “taking advantage of the Good ol' USA!” in a post on Truth Social, his social media platform.

“Our past ‘leaders’ are to blame for allowing this, and so much else, to happen to our Country,” Trump wrote. “MAKE AMERICA GREAT AGAIN!”

Trump has insisted his tariffs are necessary to rebalance global trade and rebuild domestic manufacturing. He has singled out China as “the biggest abuser of them all” and criticized Beijing for increasing its own tariffs in retaliation.

The Republican president also called on the Federal Reserve to lower interest rates. On Friday, Federal Reserve Chair Jerome Powell warned that the tariffs could increase inflation, and he said “there’s a lot of waiting and seeing going on, including by us,” before any decisions would be made.

Trump spent the weekend in Florida, arriving on Thursday night to attend a Saudi-funded tournament at his Miami golf course. He stayed at Mar-a-Lago, his private club in Palm Beach, and golfed at two of his properties nearby.

On Sunday, he posted a video of himself hitting a drive, and he told reporters aboard Air Force One that evening that he won a club championship.

“It’s good to win,” Trump said. "You heard I won, right?”

He also said that he wouldn’t back down from his tariffs despite turmoil in the global markets and fears of a recession.

“Sometimes you have to take medicine to fix something," Trump said.

On Monday, the president is scheduled to welcome the Los Angeles Dodgers to the White House to celebrate their World Series victory. He's also meeting with Israeli Prime Minister Benjamin Netanyahu, and they're expected to hold a joint press conference in the afternoon.

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Trump stands firm as tariffs spark global market plunge