Writing for New Republic, Conor Lynch speculates that President Trump may not be a Russian asset per se; he might just be a fellow traveler:
To be fair to the critics..., Trump’s behavior was indeed troubling. During the NATO summit, Trump insulted and alienated leaders of the United States’ closest allies, and it became clear early on that he had no intention of toning down his rhetoric. After declaring that Germany was “captive to Russia,” blasting other members as “delinquent,” and threatening to “go it alone” if other countries didn’t raise their spending, the president held a bizarre press conference on Thursday to declare the summit a success and once again refer to himself as a “stable genius.” The NATO summit was a success in at least one sense: As Alex Ward put it in Vox, the big winner of the summit was Vladimir Putin, who “wants to divide NATO.”
But even after Trump’s scandalous week in Europe, there is still a better explanation for his apparent hostility towards Europe and affection for Putin: Trump and Putin have similar worldviews and political temperaments, and thus see eye to eye on many things. Both are political reactionaries and ultra-nationalists and, though Putin is far more authoritarian, Trump has made it clear that he would rather be a dictator than the leader of a democracy with constitutional restraints on his authority. The American president has a long history of praising authoritarian leaders like Putin and President Xi Jinping of China while disparaging democratically elected leaders as “weak,” so it is not surprising that he would admire the Russian president.
I mean, Occam's Razor gives this idea some credence. But let's not kid ourselves: the outcomes from Trump's worldview are in themselves very disturbing. He just may want them on his own, without Russian help.