Today, voters in Pennsylvania are casting votes that will likely make or break Hillary Clinton’s presidential campaign.

At a rally in Scranton, the senator from New York admitted that “the last day is here.”

Clinton is a big ally to the teachers’ unions, and a champion of early education. And, she’s still trailing Barack Obama in delegate counts. With the end to this heated two-way Democratic primary near—whether it comes immediately after today’s primary or if it drags out until summer—I’m wondering what impact a Clinton departure would have on the debate about education in this race. Would a two-way race between Republican Sen. John McCain of Arizona and Democratic Sen. Barack Obama of Illinois elicit more debate about reforming public schools, or even less? What do you think?