Watch: A Look back at U.S. Presidents Throwing Out MLB's First Pitch

The Major League Baseball team in the nation's capital has already reportedly asked President-elect Joe Biden to throw out the first pitch for the 2021 season. It wouldn't be the first, first pitch by Biden, but it would be his first as a U.S. president if the results called by TV networks hold pat.

The Washington Nationals have already asked Biden to throw out the first pitch at their first home game of the 2021 season—if and when it happens next year. The 2020 MLB season got sidetracked with COVID-19, which not only canceled the final two weeks of spring training, but sliced the regular season by one-third, played games before no fans and increased the amount of playoff teams.

Banking on a regular season at home in 2021, Biden—after he would presumably take the White House—would toss the first pitch. Sitting President Donald Trump did not even do that for the 2019 World Series champions Nationals, but Dr. Anthony Fauci tossed a first pitch in the COVID-shortened 2020 season.

Biden last threw out the first pitch of a MLB game in 2009 for the season opener between the Baltimore Orioles and New York Yankees. Biden, who played Little League ball as a shortstop, threw from the mound at Camden Yards and tossed a high fastball that day during his first term as vice president.

The Nationals extended their offer to Biden to throw out the first pitch of the 2021 season on Saturday, hours after he was called the next president by the Associated Press.

"We're excited to continue the long-standing tradition of sitting Presidents throwing out the first pitch at the home of the national pastime in our nation's capital," the Nationals posted on Twitter.

As long as Washington has had a professional baseball team, a president has thrown out the first pitch for that team—except Donald Trump, according to AP. It all began with President William Howard Taft in 1910.

Trump did attend Game 5 of the World Series when the Nationals hosted the Houston Astros, but he was booed by the fans.

Here are some of the ceremonial first pitches thrown by U.S. presidents over the years.

Since it's a backwards chronological order, it starts with President Barack Obama, who threw out the first pitch for the Nationals on April 5, 2010, decked out in a red Nationals jacket and ball cap sporting the White Sox of his hometown of Chicago.

Then there was the 43rd president, George W. Bush, who threw out the first pitch in Game 3 of the 2001 World Series, just a month and a half after the 9/11 attacks. Bush threw out the first pitch at Yankee Stadium in New York, where the Twin Towers fell just a month before. Bush was greeted with a rousing cheer from the stands.

And he threw a strike.

President Bill Clinton threw out this first pitch on April 2, 1996 in Baltimore. There wasn't a team in Washington at the time, and this was the final year of Clinton's first term. He was met by a mix of cheers and boos from the Orioles fans. The president lobbed a left-handed pitch that made it over the plate.

Just like Clinton, President George H.W. Bush was a lefty. Bush, who was a standout baseball player at Yale, threw out the first pitch in Baltimore for the 1992 season, tossing a one-hoper to the plate. Bush's son, who became the 43rd president after being governor of Texas and president of baseball's Texas Rangers, was on the field in Baltimore that day in 1992.

Then there was Ronald Reagan, who threw the first pitch at a Chicago Cubs game at Wrigley Field in September 1988. Legendary Cubs announcer Harry Caray narrates this video as Reagan emerged from the dugout in a Cubs jacket. Reagan, who played sports figures as an actor, who threw it "high and inside," as Caray called it.

The last one we'll show you (before a montage of presidents since 1910) is President Jimmy Carter, who threw out this impressive first pitch before Game 6 of the 1995 World Series between the Cleveland Indians and his home-state Atlanta Braves. Carter reared his left leg and tossed a strike.

President Trump ended a 109-year streak of presidents throwing out first pitches, but here's a video montage of those who have thrown out the ceremonial ball over the last 100 years.