That’s because we all now know that Trump was right when he said he could shoot someone on Fifth Avenue and his supporters would stick with him. We’ve seen him get away with too much by now. No restraint on Trump will ever come from his party or his base — especially after the passing of John McCain. So save your breath. Trump will be restrained only if his party loses the House or the Senate. That’s what is at stake in the midterm elections — so vote accordingly.

And for those Republican moderates, independents and suburban white women who voted for Trump in 2016 and are considering voting against G.O.P. House and Senate candidates in November to put some limits on the president and show their disapproval at G.O.P. lawmakers’ failure to act as an independent branch of government, let me describe the stakes in another way:

America, we all know, won the Cold War. Our values and economic system proved superior to Russia’s. But what is at stake in the 2018 midterms is who is going to win the post-Cold War.

Yes, that question is back on the table. Because what we are seeing in the behavior of Trump and his toadies in the G.O.P. is the beginnings of the Russification of American politics. Vladimir Putin could still win the post-Cold War.

At the Cold War’s height, noted Marina Gorbis, executive director of the Institute for the Future and an immigrant from the Soviet Union, Americans took seriously the notion that we had to serve “as a contrast” to the Russians.

Because the Soviets claimed to have built a worker’s paradise, it was important that we had strong unions, a strong middle class, less inequality and an adequate social safety net. The Soviets did not have the rule of law. So we had to have it more than ever.

“I came here from Russia in ’75,” Gorbis added, “and it was remarkable to me that in this society there were laws and norms and principles, and people abided by them. The idea that people actually paid their taxes was kind of remarkable to me.” In the Russia she grew up in, said Gorbis, “we did not have that; if there was a law, there was always a way to bribe and get around it. ”