Only once in US history has a US president lost an election then regained the White House four years later: Grover Cleveland in the late 1800s.
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Trump is the subject of several federal investigations, including the Jan. 6 probe, the investigation into Trump's handling of documents recovered at Mar-a-Lago, and an investigation into his fledgling social media company, Truth Social.
Reaction from Central Valley ahead of Donald Trump announcement
Some aides have suggested the former president believes that declaring his candidacy will shield him from the probes, but many legal experts say a run will not result in any special protections for the former president.
Fred Vanderhoof, the chairman of the Fresno County Republican Party, says there's still enthusiasm about the announcement within the GOP.
"The first term is always a learning curve, for any president," he said. "He was very effective the first term, but he'd be even more effective the second term."
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Thomas Holyoke, Professor of Political Science at Fresno State, suggests stronger republican candidates could emerge.
RELATED: Donald Trump announces he's running for president in 2024, marking his 3rd bid for White House
"If the Republicans had a real winner last election night, it was Ron Desantis," he said. "He won overwhelmingly and has made Florida a red state rather than a toss-up state."
Former Vice President Mike Pence told ABC's David Muir in a one-on-one interview that there are better options than Trump for President.
Ivanka Trump said in a statement that she does not plan to join her father in his 2024 campaign run saying, "While I will always love and support my father, going forward, I will do so outside the political arena."