I’ll leave it to the pundits to speculate about what led Mitt Romney to choose Paul Ryan as his running mate. But as far I’m concerned, it was a great decision. As someone who is deeply concerned about how out-of-control federal spending threatens to deprive future generations of the economic opportunity people of my generation enjoyed, I have been an enthusiastic supporter of Rep. Ryan and his serious approach to balancing the federal budget. But the best thing about his addition to the ticket is that it guarantees that an issue that ranks among the most serious facing our country today – the menace posed by our growing debt – will be central to the debate in this year’s Presidential campaign. And that’s good news for all Americans.