“That sounds to me like a money-making operation for Pfizer,” Trump, who was secretly vaccinated last January at the White House, told Fox Business host Maria Bartiromo. “Think of the money involved. An extra shot … How good a business is that? If you’re a pure businessman, you’d say, ‘you know what, let’s give them another shot,’ that’s another $10 billion of money coming in — the whole thing is crazy.”
That ought to help convince the hesitant folks.
To be fair, earlier in the interview he did endorse the vaccine in general:
“I recommend that people take it,” he said. “I also recommend that you have your freedoms to do what you want to do.”
Trump added: “Now one thing: When you have the vaccine, people that do — and it’s a very small number relatively, but people that do get it — get better much quicker. And it’s very important to know. They don’t get nearly as sick, and they get better. [Sen.] Lindsey Graham is an example. He said, if I didn’t have this vaccine, I would have died.”
https://www.washingtonpost.com/politics/2021/08/18/trump-went-fox-promoted-vaccines-then-host-goaded-him-into-bashing-boosters/
So at the goading of FOX, he accuses Pfizer of phony boosterism of the booster shots.