President Trump has already told advisers he's thinking about running for president again in 2024, two sources familiar with the conversations tell Axios.Why it matters: This is the clearest indication yet that Trump understands he has lost the 2020 election to Joe Biden — even as the president continues to falsely insist that he is the true winner, that there has been election fraud and that his team will fight to the end in the courts.Presidents are limited to serving two terms but they need not be consecutive.Officials with the Trump campaign and White House could not immediately be reached for comment.Be smart: Aides advising Republicans who are likely to run in 2024 are dreading the prospect of a Trump run given the extraordinary sway he holds over millions of GOP voters.Even four years after leaving office, he could remain formidable in a Republican primary.That fact alone could freeze the ambitions, fundraising and staffing of individual candidates — and of the Republican National Committee as it seeks to regroup and move beyond Trump.Don't forget: On the day he was inaugurated, in 2017, Trump filed paperwork with the Federal Election Commission to qualify as a 2020 candidate.