I was going to write out an argument, but I can't get more succinct than Dahlia Lithwick:
ADDING: Weigel dumps more cold water on the idea.
Garland probably won’t want to give up his lifetime tenure as the chief judge of the second-most important court in the land, and surely the most significant bulwark against Trump administration overreach, in exchange for a 12-minute gig on The Apprentice before he uses the wrong color highlighter and gets fired by a crazy person.So stop it with the Garland idea. All it would do is give Trump another Judge on the D.C. Circuit.
ADDING: Weigel dumps more cold water on the idea.