Those shocked that the Republicans will push to fill a Supreme Court vacancy when Trump is running for reelection when they wouldn't when Obama was headed out of office might be forgetting that democrats demanded a hearing and now reversed their position. It's all sides.
Republicans can say there's multiple objective differences that explain their different position now. Other than "we hate Trump", what else is different that could explain a rational objection to a vote from those who demanded a vote 4 years ago?
@khird perhaps. I think nailing down "the rule" is purely subjective. The rule is either not to hold a vote during any election year (which is 50% or more of years), or don't hold a vote during the final months of a lame duck president (at term limit) when a different party holds the senate.
There's so much objectively different this time, whatever happened last time doesn't seem that it would apply.
I also don't think after what happened with the last nominee there's any good faith left for any kind of negotiation or promises.