It won't do to pretend Neil Gorsuch is now on the Supreme Court because of high principle, even if his rulings on the Court demonstrate high principle. The whole thing was about a raw exercise in power. And given the stakes, raw power is what matters. Instead of Barack Obama putting a jurist on the court who would have rolled back the First, Second and Fourth Amendments to fit current leftist desires, Donald Trump put a jurist on the court who might protect those amendments. One can never be sure with justices appointed by Republican presidents. One can always assume a leftist jurist will vote in lockstep, because they always do.
Last year, Mitch McConnell rolled the dice. This time he won. And now that the filibuster is gone, it's likely Trump will have more justices to appoint. I could see him naming the replacements for four more jurists -- Kennedy, Breyer and Ginsburg are getting up there, and Thomas has made noises about retiring in the past. A lot of Democrats are thinking they will flip the Senate and/or the House in 2018, but I doubt that will happen. I would not be surprised if we start seeing a lot of 7-2 decisions in the future.