While both current United States President Joe Biden and former U.S. President Donald Trump have teased 2024 re-runs for the top office, they aren’t the only people throwing their names into the ring, with several contenders continuing to appear on both sides.

Multiple Republicans who have made their mark on the 2021 political news cycle could mount campaigns against Trump if they all make a bid to run, including state governors, ambassadors and senators.

One name that has floated often amongst Republicans is Florida Governor Ron DeSantis, whose notable lack of an approach to combating the COVID-19 pandemic in his state and his open distaste for critical race theory have put him in the spotlight. However, The Hill reports he is more focused on his 2022 reelection campaign for his current job, though that does not fully rule out a 2024 presidential run.

Former U.S. Ambassador to the U.N. Nikki Haley has also been mentioned as a top contender. In both 2020 and 2021, she spoke out against Trump in the wake of his refusal to accept the results of the 2020 Presidential election and after the insurrection on the Capitol on Jan. 6. However, she has since also stated that if the former President ran again, she would not do so.

Sen. Ted Cruz (R-Texas), who has been one of Trump’s biggest supporters, could make an attempt at a second bid for the Presidency in 2024. He previously ran in 2016 against Trump, coming in second behind the man who eventually won the White House.

Rep. Marjorie Taylor Greene (R-Ga.) has also been mentioned as a potential candidate, with her more radical views gaining her staunch supporters and opponents during her time as a Congresswoman. Senator Liz Cheney (R-Wyo.) has also been mentioned as a potential candidate as a key figure in the Jan. 6 subcommittee investigating Jan. 6, though it is unclear how much support she would receive in her party.

White House Decorations Heart-shape signs with Valentine messages are displayed on the North Lawn of the white House on Fen. 12, 2021 in Washington DC. Photo: Alex Wong/Getty Images

Former Vice Presidents often go on to mount their own Presidential campaigns, which also makes former Vice President Mike Pence a serious contender as well. This also applies to current Vice President Kamala Harris, should Biden choose not to run again.

Multiple other Democrats who launched bids in the 2020 race could also consider running again if Biden opted not to, including Secretary of Transportation Pete Buttigieg, Sen. Elizabeth Warren (D-Mass.), Sen. Amy Klobuchar (D-Minn.) and Sen. Cory Booker (D-N.J.).

Michelle Obama, former First Lady and wife of former President Barack Obama has also been mentioned as a possible contender, with conservative political commentator Joe Rogan even saying she would win in a race against Trump in 2024. However, she has formerly stated she would never run for Presidential office.

Several other names have also been mentioned, but what happens in 2022 and 2023—especially after the 2022 midterms—could ultimately be what determines who will actually run in 2024.