Is compromise possible on school vouchers?

Here's a quick news quiz: Who said, "Fully funded vouchers would relieve parents from the terrible choice of leaving their kids in lousy schools or bankrupting themselves to escape those schools"?

If you guessed Secretary of Education Betsy DeVos, you're wrong. The correct answer is Sen. Elizabeth Warren (D., Mass.).

Drawn from a 2003 book that Warren wrote with her daughter, the quote has been making the rounds on right-wing websites. Warren supported vouchers, and now she is flaying DeVos for doing the same! What a hypocrite!

For their part, liberals maintained an embarrassed silence about Warren's comment. Vouchers have become a "dirty word" in the left-wing lexicon, as Warren lamented in her 2003 book.

But Warren and DeVos actually represent different strands of the voucher movement, which used to attract liberals and conservatives alike. So let's pause to consider whether there might be some room for compromise. ...