Not since the Ginsu knife cut through an aluminum can and still sliced a tomato has America seen a pitch quite like the one President Obama delivered in the Rose Garden on Monday. “The product is good. The health insurance that’s being provided is good. It’s high quality, and it’s affordable,” the president announced. “People can save money — significant money — by getting insurance that’s being provided through these marketplaces.” How much would you pay for a health plan like this? Before you answer, listen to this: “No one who decides to purchase a plan has to pay their...