No, he didn't state that. It was the staff writer for the Daily Kos that did.
His last paragraph in his article:
If Trump can only get Sotomayor and Ginsburg to sit down and shut up, the Republicans on the court will keep right on saving him, no matter how far they have to go. Or they’ll keep saving him with narrow, completely partisan decisions. Which is what is happening now.
When writing the story of your life, don't let anyone else hold the pen!