Earlier quoted context omitted.
Since you clearly don’t get the context, the Republicans made this a giant issue when Obama had an open Supreme Court seat towards the end of his term. Let’s call a spade a spade: the republicans have no regard for the constitution or laws of the land if they benefit from ignoring it. They will now ignore the precedent they set and place a new Supreme Court justice.
I think the law of the land is probably “whoever controls the Senate decides whether the Senate confirms a nominee”, but I guess we’ll find out soon.
This wasn't always the case, here's an excerpt from the wiki on recent changes making this the case:
"Senate cloture rules historically required a two-thirds affirmative vote to advance nominations to a vote; this was changed to a three-fifths supermajority in 1975. In November 2013, the then-Democratic Senate majority eliminated the filibuster for executive branch nominees and judicial nominees except for Supreme Court nominees by invoking the so-called nuclear option. In April 2017, the Republican Senate majority applied the nuclear option to Supreme Court nominations as well,[2] enabling the nominations of Trump nominees Neil Gorsuch and Brett Kavanaugh to proceed to a vote.[3][4] "