15 years after Bill Clinton won the White House on an economic message, the 2008 campaign has returned to a familiar theme. When Mitt Romney decisively won the Michigan Primary-- running on his record as a successful businessman who could rescue the state from record unemployment-- it served notice that the slowdown in the U.S. economy has become a major issue in the 2008 campaign. One candidate who clearly got the message-- John McCain-- who has begun emphasizing his credentials as a fiscal conservative. SOUNDBITE: John McCain, presidential candidate, saying (English): "Stop the spending first! Stop the spending first. If you don't stop the spending, then it's all going to go out the door no matter what it is." Some analysts say this renewed focus on the possibility of an economic downturn may benefit the campaign of Mitt Romney. John Geer is an expert in presidential campaigns at Vanderbilt University. SOUNDBITE: John Geer, political science professor, Vanderbilt...