George Will made an incisive and spirited case against the Common Core on Tuesday's "Special Report With Bret Baier. Earlier in the broadcast Michelle Rhee, whose efforts in education have earned her deserved admiration, was invited on to make the case for Common Core. She reverted to the gobbledygook language that educators too often use, and failed to make a persuasive case that the Core is good for public-school students, and will help them, and our country, in the long run.

My conversations with several Core proponents...