What?! The incumbent president is Joe Biden. I'd be more inclined to pay attention to your point of view if you understood the definition of a common word such as incumbency.
Ah, you didn’t read the article. Trump has all the advantages of an incumbent, well most of them. His pick to lead the RNC isn’t doing him any favors, he and his campaign are not calling the shots for the party as an incumbent normally does. He’s a lame duck at best for them with senators and representatives more worried about themselves than supporting Trump.