What?! Heresy! He's the only strict constructionist and originalist left on the court since Scalia's passing!
I have no idea why you'd say such a thing for Thomas to retire now. Elaborate please.
If you are 100% sure that we will retain the senate this November, then no, he shouldn’t retire until he wishes too, OTOH if there is a chance we will lose the Senate then best he retires now and give Trump another solid conservative young person.