Would Mike Pence's choice for VP get stonewalled by the DNC?

Trump leaves office, health problems, assassinated somehow (heaven forbid) and Mike Pence takes over, if he chooses (for whatever reason) someone like Newt Gingrich, or another very unpopular Republican, if the GOP loses one or both houses, and it takes both to confirm Pence’s choice, would the DNC stonewall the selection of VP and hold it hostage for concessions they want?