The best explanation that I have read for Always Trumpers still having constitutional and legal hope that Trump will win is that the media that serves them has made a policy decision based on financial gain.
Any reasonable person knows that it is over for Trump and has been over since November.
These websites/Cable channels know what their customers want to hear and therefore they stick with it as long as possible so that they can make money.
(The fox news idiotic hosts and conservative radio commentators consider themselves entertainment and therefore couldn’t care less about truth or news.)
This is the flip side of the accusations that the MSM media is biased.