At the Atlantic, Pulitzer Prize-winning historian Anne Applebaum lets the president have it for cutting a pre-election oil deal with Putin:

In the past 72 hours, Donald Trump has dropped all pretense, torched a couple decades of American policy, and undermined 18 months of his own diplomacy. He lifted sanctions on the import of Russian diesel fuel, in violation of the letter and spirit of laws that he himself signed. He has threatened to stop sharing intelligence with Ukraine, unless Ukraine agrees not to target Russian refineries, thus demanding that Kyiv give up its most effective weapon while asking nothing from Russia in exchange. He has not criticized Russian attacks on Ukrainian power plants or factories, even those owned by American companies. He has offered no condolences for the recent deaths of Ukrainian children in Russian bombing raids. 

He has lied repeatedly.

If you haven’t already, check out some of her books, especially Gulag: A History (2004 Pulitzer Prize winner) and Red Famine: Stalin’s War on Ukraine. 

Update — From the NYT: “Trump Hands Victories to Putin, Who Offers More War in Return.”