The only threat to Trump is Desanctimonious. It isnot much of a theat. DeoSanctus is a light weight and can’t really run against Trump’s record.
If you mean for the Presidency, the last election shows that the states that Trump needs are firmly in the Democrat’s hands for rigged elections.
I had thought that if Trump could be shown to have control of the Congress after 2022, the electoral map might change by 2024.
Instead, it looks like the Swamp has control. We will have a Donk Senate and a do-nothing House - to pin the disasters on the pink-elephants. Of course, everyone will still blame the out-of-power Trump.