March 6, 2008 | USA TodayHillary Clinton and Barack Obama want universal health care. John McCain's health care solution is more market-based. Most economists agree that Social Security, Medicare and other big entitlement programs that are massively underfunded must be addressed by the next president. Energy independence and protecting the environment are also top priorities. But tackling those problems costs money. Bottom line: Taxes may rise no matter which party is elected. Right now, traders are placing their bets at the online IOWA ELECTRONICS MARKET. As of Thursday, trading indicates that Obama has a 70 percent chance of winning the Democratic nomination.