President Bush won Wall Street's affections early in his term by slashing taxes. With the recessionary economy he inherited clearly on the mend, most market participants are clamoring for four more years. But while the big-picture economic news sounds uplifting, voters aren't feeling too secure about their own finances, and that has thrown the president's re-election prospects in doubt. Four months before the election, investors ought to prepare for the possibility of a victory by presumptive Democratic nominee John Kerry: It may not be as worrisome as many reflexively contend. Even Republicans acknowledge that Bush needs to make a better case for himself on the economic front, where strength is evinced by record-setting corporate profits and nine months of jobs growth, very likely to be 10 after Friday's June employment report. "By the economic growth we're seeing, you'd think Bush would be in good shape," said GOP pollster Robert Moran. "But there are a whole lot of other things at play, including a polarized electorate." Fueling speculation about the possibility of a Kerry presidency, voters don't sound too happy with the status quo. Half of Americans disapprove of Bush's handling of the economy, according to a June Gallup poll. And one in five voters is afraid of losing his or her job in the next 12 months. The violence-plagued occupation in Iraq has also seriously undermined voters' confidence in the president. Gallup's poll found that 54% of Americans believe the U.S. made a mistake in sending troops to Iraq. The upshot is that fewer than half of Americans give a thumbs-up to President Bush's performance in office, a dramatic slump from a job approval rating near 70% just a couple of years ago. At this stage, such weak support usually means a sitting president is headed for the unemployment line. "The last three presidents with numbers like this were Ford in '76, Carter in '80 and President Bush's father in '92," said John Zogby, head of an independent polling firm. All three failed their re-election bids.