Which presidents opted not to run for reelection

Presidents Biden, Clinton and Obama unite in New York City for election fundraiser
Biden, former presidents poke fun at Trump at NYC fundraiser
Presidents Biden, Clinton and Obama unite in New York City for election fundraiser
Biden, former presidents poke fun at Trump at NYC fundraiser
Sen. Mitt Romney won't seek reelection in 2024 | ABCNL
Sen. Mitt Romney won't seek reelection in 2024 | ABCNL
Hutchinson responds to Biden's 2024 reelection bid | ABCNL
Donald Trump now facing charges in 4 different cases as he runs for reelection
President Biden heads to Sacramento to continue reelection campaign
How history might remember Biden’s speech after ending reelection bid

Can former President Donald Trump run for president again despite indictment?
Hutchinson responds to Biden's 2024 reelection bid | ABCNL
Presidents Biden, Clinton and Obama unite in New York City for election fundraiser
Biden makes 1st appearance since ending reelection campaign
Suspect still at large in deadly DC hit-and-run l GMA
Sen. Mitt Romney won't seek reelection in 2024 | ABCNL
‘We’ve got to run to something’: Vivek Ramaswamy on campaign message
Donald Trump now facing charges in 4 different cases as he runs for reelection
President Biden heads to Sacramento to continue reelection campaign
Rep. Jim Jordan says he will run for House speaker