While TIME named “The protester” as its person of the year, it reserved for Wisconsin congressman Paul Ryan the honor of “prophet.”

Through a combination of hard work, good timing and possibly suicidal guts, the Wisconsin Republican managed to harness his party to a dramatic plan for dealing with America’s rapidly rising public debt. He brought an ugly issue out of the foggy realm of think tanks and blue-ribbon panels and dropped it into the middle of the national debate in time to define the next presidential election. If 2012 turns out to be a clear choice between very different answers to a genuinely important question — instead of the usual vague contest between competing slogans and haircuts — give the credit to Ryan.