Whether he's your candidate or not, give Bernie Sanders credit: He has made inherently corrupt, high-roller campaign financing a central issue of his presidential bid.
"Bernie definitely has blazed a trail," says Derek Cressman, a California-based political reformer. "No presidential candidate has ever made it a centerpiece of his campaign the way he has."
In 2000, Sen. John McCain of Arizona railed against so-called soft-money donations to political parties in his unsuccessful race for the Republican nomination, but he also had higher-priority issues.
Sanders, the independent senator from Vermont running for the Democratic nomination, has made...