So why and how did the P.G.A. of America and Southern Hills have to get ready so quickly?

In 2014, the P.G.A. awarded the men’s major to Trump National Golf Club in Bedminster, N.J. Its owner, Donald J. Trump, was then a businessman with a portfolio of 17 golf clubs in the United States and Scotland.

That same year, Mr. Trump bought Turnberry, a Scottish course that had hosted the British Open four times. He had a reputation for investing heavily in his clubs and also for wanting to host big tournaments, which can be a hassle for private clubs that have members who can’t play as the tournament gets close.

It seemed like a solid plan to host the tournament at what is better known as Trump Bedminster.

“The P.G.A. of America is excited to begin a new chapter of major championship history by taking two of our premier championships to venues that bear the Trump label of excellence,” Ted Bishop, then-president of the P.G.A. of America, said at the time.

Mr. Trump said: “Having the P.G.A. is a very, very big deal. So, it’s very important to me. It’s a great honor for me.”

Then he was elected president in 2016. Fast forward to Jan. 6, 2021, when President Trump gave a speech that fired up a crowd in Washington, which then stormed the Capitol to stop the certification of the 2020 election results.

Five days later, the P.G.A. of America announced it had voted to pull the 2022 major from the Trump course.

“It has become clear that conducting the P.G.A. Championship at Trump Bedminster would be detrimental to the P.G.A. of America brand and would put at risk the P.G.A.’s ability to deliver on many programs and sustain the longevity of our mission,” Jim Richerson, the P.G.A. of America’s president, said.