President Trump’s first major league baseball appearance since taking office did not go as expected. Fans of America’s game were not happy to see 45.

Accompanied by his wife and other Republican politicians, he attended game five of the World Series in which the Nationals played the Astros. The president’s appearance was unknown by most until later in the game. Jumbo screens at Nationals Park saluted U.S. service members, and the crowd cheered. The screens then cut to Trump, and the crowd immediately went into an uproar and began booing. The boos turned into chanting, with the crowd hinting at the recent impeachment inquiries.

“Lock him up!” they shouted. 

While his unwelcome presence was made known, the president and his entourage stayed standing and waving to the crowd, plastering smiles on their faces. 

During Trump's campaign rallies throughout the 2016 election, supporters famously chanted "lock her up" in reference to the president's former presidential opponent Hillary Clinton. 

Members of the Nationals organization also commented on Trump’s presence. 

"He's coming to the game. He's a fan. Hopefully he cheers for the Washington Nationals, and I hope he enjoys the game,” said David Martinez, manager for the Nationals. 

"I think everybody is excited," Stephen Strasburg, Nationals pitcher, said before the game. "It's the president of the United States. So there's obviously beefed-up security. So usually the dogs that are sniffing in our clubhouse are these nice Labs that are super friendly. And today there was a German shepherd that I didn't really feel comfortable petting."

Trump isn’t the first leader of the free world to be booed at a baseball game. Jimmy Carter, Ronald Reagan, Richard Nixon and both Bushes had the same experience — minus the crowd calling for imprisonment. 

He is the first president, though, to not throw out a ceremonial first pitch at a game. Every person who has held the office since 1910 has participated. 

Rob Manfred, MLB commissioner, said the president had told him he did not want to partake in the tradition at the World Series “in order to make the fan experience as positive as possible.”

Trump had joked on Friday that he didn’t want to step up to the mound due to how his bullet-proof vest would make him look. 

“I don’t know. They gotta dress me up in a lot of heavy armor. I’ll look too heavy. I don’t like that,” he said.

Mark Lerner, principal owner of the Washington Nationals, told the Washington Post that Trump should be at the game but that he did not invite him to throw the first pitch. He said there were many other candidates who should be considered before the president. 

Jose Andres, a prominent D.C. restaurant owner and Trump critic, threw out the pitch instead.