The second I finished watching President Trump fawning over Vladimir Putin in Helsinki — refusing to defend the conclusions of his own intelligence services about Russia’s interference in our 2016 elections — I knew I was seeing something I’d never seen before. It took a few days to figure it out, but now it’s obvious: I was seeing a U.S. president put Russia first, not America first.

On each key question — how much Russian agents were involved in trying to tip our elections, how that issue should be further investigated, and Putin’s behavior on the world stage generally (like his government’s involvement in the downing of the Malaysian airliner over Ukraine, the murder of Russian journalists and the poisoning of a former Russian spy in the U.K.) — Trump embraced Putin’s explanations and excuses over the judgments of his own spy agencies, Justice Department, European allies and bedrock American values.

I like what Arnold Schwarzenegger said to Trump afterward: “You’re the president of the United States. You shouldn’t do that. What’s the matter with you?”

What’s the matter with you? I don’t know the definitive answer to that question, but I know that it will be an increasing problem as we enter Phase 3 of the Trump presidency.