According to McConnell in 2016, Obama had no right to expect a SC nominee of his choosing to pass because he was a lame-duck President, and the next President, chosen by the people's voice, should have that expectation; in that way, the people would have a voice in the SC makeup- that's at least an arguably valid position (if a little extra-Constitutional).
Further (and necessary) refining of McConnell's "principle" has been that the midterms of 2014, which gave the GOP a Senate majority, was the voice of the people telling McConnell that he could block Obama's nominees, presumably for the whole two years remaining of his term (that didn't come to a test, so it's hypothetical, but seems at least implied by the argument); and McConnell has said that the further "extension" (I think that was his term) of the GOP senate majority in the 2018 midterm was also an extension of the earlier endorsement by "the people's voice" to pretty much give Trump whatever he wanted.
So, my question is this- suppose (unlikely but possible) Trump wins re-election but the GOP lose their Senate majority? Does that mean that McConnell will concede that the people have decided, by their voice in his (refined) "principle," that now the Dems have the right, for at least the next two years, to block any Trump appointees to the SC? After all, despite Trump's "jokes" to the contrary, he will be as much a lame duck from the first day of his second term as Obama was the last two years of his.
Does McConnell not understand the implications of what he's arguing now for the sake of political expediency? It’s not just that any future president who is ever faced with a Senate majority of the opposing party can’t expect the ability to get a nominee passed, he won’t realistically have the right to even name one. And the one branch of government that absolutely does need to be independent of politics becomes subsumed in it. In the real world, the SC has always been politicized to a degree, but the design was at least to keep it separate. If McConnell's way is followed, the price is to now expressly make the Court political.