At a recent forum on increasing savings, Pennsylvania Sen. Rick Santorum was asked how difficult it would be to persuade his fellow Republicans to set aside several billion dollars a year to help low-income children save for college and retirement. In response, the senator put forward what is likely to be a key message in his 2006 re-election campaign: "I've always said the president has a compassionate conservative agenda, and [former Oklahoma Rep.] J.C. Watts [Jr.] and I are the two Republicans who are going to try to enact it," Santorum said half-jokingly. "Now it's just me." As he primes...