the GOP controls the Senate, and they're the ones who approve Supreme Court appointments.
I've read a couple similar articles along those lines, that if they hold up this appointment for the entire year, it will hurt them in November.
Who knows? I'm sure they will attempt to paint whoever he appoints as a "dangerous liberal" in order to justify their actions. For the percentage of "Dumbass Americans" out there, i.e. Spartanracist & his ilk, it won't matter; Obama is by definition a radical socialist islamofascist, so whoever he appoints will be one too, by extension. No need to even think about it!
It probably will hurt them at the polls, especially assuming he'll appoint someone from among the ranks of Federal appellate court judges, all of whom have been appointed and confirmed before, vetted by our right-of-center federal government, and with a decade plus of jurisprudence under their belt, allowing people capable of thinking, i.e. not Spartanracist and his ilk, to review their cases and opinions and decide for themselves if they are a dangerous liberal islamofascist, or whatever.
I was happy to hear Dems start playing the obstructionist card early on. The GOP will be taking a major political risk if they attempt to block anyone likely to be an appointment.