As Sen. Barack Obama has learned in recent days, it's easy to slip up when taking on economic issues in a political campaign.
From Walter F. Mondale vowing at the 1984 Democratic convention to raise taxes to President George H.W. Bush supposedly marveling at a grocery scanner in 1992, campaign histories are littered with those who seemed to misstep or misspeak on the economy. Most politicians aren't financial experts after all, and some are better than others at distilling complicated economic problems into sound bites and campaign commercials.
But it's especially tricky this year, with the electorate in a sour mood about the direction of the country, home foreclosures at record highs and a complex global credit crisis looming.