Trump added that he thought the GOP should be "reimbursed for fraud."
Trump raises an excellent point: his campaign was forced to waste money against Biden for as long as it did only for the Democrats to pull the rug out from under him by pulling Joe out of the race. This, if anything, is a form of cheating.
Ahh, the famous cheat of checks notes changing your mind weeks before announcing a decision.
Biden was never running against Trump in the 2024 election. The Democrats still have not announced a candidate. If the Republicans wanted to campaign against the presumptive nominee before an official decision was made, that's on them.