There's an interesting theory making the rounds that Trump might delay naming a new Supreme Court justice until after the election, in order to motivate his supporters to get out and vote.  If he gets one confirmed before the election, that might take away some of the motivation his supporters might have.   He makes "If I win you will get a conservative justice, if I lose you will get a liberal justice" a campaign issue.

Look at it this way: Republican senators want to confirm a new justice before the election because they are worried that Trump might be defeated in the election and they would lose the opportunity.   So why would Trump cooperate with them and have that issue off the table?  He might want to keep that issue alive.

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