Perhaps it is glib to observe that, at the end of the day, Republicans should confirm a replacement for Justice Ginsburg because they can confirm a replacement for Justice Ginsburg, but there is a lot of truth to that observation. They can do it because the president has the power under the Constitution to appoint a nominee (I expect it to be Amy Coney Barrett, but Barbara Lagoa is a possibility and a great one), plus because the Senate has the power under the Constitution to confirm said nominee. And they better do it, because the Democrats intend to crush...