Tim Murtaugh, a Trump campaign spokesman, told the New York Times the committee had existed for some time.
"The President always planned to do this, win or lose, so he can support candidates and issues he cares about, such as combating voter fraud," Murtaugh said.
The two developments are a reminder that after Trump leaves office on January 20, 2021, he will continue to be a force in the Republican Party.
Trump picked up at least six million more votes in the 2020 election than he did in 2016, an indication of the sway he still holds over a major chunk of Republican supporters.
If he runs for the White House again, Trump will know it will be Republican voters - who overwhelmingly approve of his handling of the presidency, according to polls - who will pick the party's 2024 nominee.
Should Trump decide not to run, he could effectively become kingmaker, with his nod potentially the most sought-after endorsement of a Republican campaign.
Already it is notable how leading Republican figures who may launch a 2024 bid, such as senators Ted Cruz and Lindsey Graham, have weighed in behind Trump's legal challenges of the election.