It doesn't undermine the argument but I wasn't speaking to the argument. It's just not the case that more than 2 appointments per term is all that unusual. Calling it unprecedented deserves pushback.
Sure, unprecedented is too strong. In the last 12 presidencies, all of them have appointed 2 or fewer justices except for Nixon and Reagan at 4, and Trump at 3. It’s precedented for Republican presidents to appoint an extraordinary amount of justices…