This is a good review of Trump’s motivations for these things. It now appears that this one may have, ironically, done him in. The ‘treason summit’ is not a Twitter flash but coming on the release of the dense and detailed Mueller indictment of Russian GRU agents is a tipping point. The politicians, even Republican ones who have no shame, are abandoning Trump now and the will become a deluge.
Narcissists cannot help themselves but to grovel at the feet of those they fear. It is a combination of fear and longing. Putin owns Trump via money laundering and years of GRU monitoring. He even gave it away in the press conference when he said they can’t keep track of all businessmen visiting Moscow. No, but they can and do track anyone of any importance and have for years just in case an opportunity shows up. We know Trump is all powerful and completely impulsive with fixers to coverup the evidence. Too many years, too many nasty acts, and nothing works forever.