A lot of people like Trump. A lot of people hate Trump. It is not an exaggeration to say that Trump is a failure because he intentionally did not just fail to follow through on basic promises, but he actively reversed his position and attacked his base. The situation is so bad now that the major polling group Rasmussen reports that almost a quarter of Republicans want to dump Trump for another presidential candidate.
Republicans overwhelmingly expect President Trump to be their nominee this fall, but nearly one-in-four GOP voters would prefer someone else.
The latest Rasmussen Reports national telephone and online survey finds that 23% of Likely Republican Voters think their party should find someone other than Trump to be their presidential nominee. Seventy percent (70%) disagree. Only seven percent (7%) are undecided. (source)
This is the reason why Biden is being placed into power- because he has dementia, and the only reason that he would be in such a place is to ensure a Trump victory. There is no other way to explain it that makes sense.