State Department veteran George Kent, one of the witnesses who testified on the hearings’ first day, explained that conflict with Russia is the entire point of America foreign policy: “Ukraine’s success is very much in our national interest, in the way we have defined our national interests broadly in Europe for the past 75 years. … A Europe truly whole, free and at peace — our strategic aim for the entirety of my foreign service career — is not possible without a Ukraine whole, free and at peace, including Crimea and Donbas, territories currently occupied by Russia.”

Got that? The territorial integrity of Ukraine is essential to America’s national interests. Our own borders mean nothing, of course. Defending them is racist and immoral. Everyone in Washington knows that.

But Ukraine’s borders — the borders of Crimea and Donbas — those are apparently vitally important and have been for 75 years. So back off, Trump, with your wild ideas about changing things because the world is now totally different than it was 75 years ago and voters want to move on. Moving on isn’t allowed here. Change is prohibited.