I disagree. Trump trying to bring the Republicans back into his fold does not mean he's capitulating to them. He needs their support to pass the vital issues he wants to get through Congress.
As far as backing incumbents, it's sensible. Unless incumbents do something really bad, they will win. And he doesn't want or need more democrats.
The only thing that really annoyed me was Trump's blaming Roy Moore for the Alabama loss when he should have blamed the Democrats.
Let's step back for a bit, during the presidential campaign and long before the nominee was decided and even before Trump began to lead in number of delegates he met with both Ryan, McConnell and Priebus. It was around the time that Trump commented that he needed to become a little more 'establishment'. As his campaign continued and well up until he was handed the nomination he back pedaled several times on issues. So he really sent Ryan and McConnell a clear message; he was willing to play their game.
When Bammycare was first brought to focus in the House, instead of siding with the Freedom Caucus who was demanding repeal; he scoffed at them. Again, Trump sent Ryan a clear message. He was willing to play his game. He did the same when it came to McConnell in the Senate.
Yes, he is continuing to play their game. His biggest campaign promise and why people rallied behind him was building a wall, the other was that he was not establishment. In fact he promised to drain the swamp. Well, the wall still isn't budgeted and the fate of DACCA is uncertain, he certainly isn't going to drain much of the swamp if he backs those incumbents who lean left. It is known that is what McConnel does ... he backs incumbents, not because they are doing such a fantastic job, but because he wants to keep conservatives out!
Yes, he's taken us more to the right then 'W' did, so far. IF we lose the majority, I have absolutely no doubt that Trump will get back on his liberal band wagon.