It motivates your supporters to not just let them cheat you and then take it on the chin like the Republican party has been for decades. Its not very useful for him, he lost and they will never let him get it back, but it keeps his base from giving up hope completely by at least acknowledging he knows how fucked it all is and letting them have a bonding laugh over it.

I shouldn't be the one having to explain to you how to avoid the doomer pill.