Debate about immigration has rarely seemed so polarized — from Donald Trump threatening to deport all 11 million unauthorized immigrants to Bernie Sanders promising to legalize as many as 9 million without consulting Congress.

But almost everyone agrees: It would be better for the newcomers and the nation if more immigrants were learning English. As immigrant families are the first to recognize, English is the language of success in America. The problem: We as a nation do an exceedingly poor job of providing English language instruction, especially for adults.