The top two competitors for a top-flight finish in Iowa’s Caucuses met face-to-face this morning in Des Moines. Republican presidential candidates George W. Bush and Steve Forbes shook hands briefly as they worked the crowd at the Iowa Farm Bureau convention. As farmers sat eating pancakes and sausage, the two candidates strolled around, media throng in tow for a glimpse of the two greeting one another and shaking hands. The Bush campaign handed out green farm caps that read “Bush Farm Team.” Forbes, the author of the “flat tax,” had a quick comeback, telling farmers they could wear the green but he’d let them keep the green.Bush has unveiled his own tax plan: income tax rate reductions which would reduce American’s tax burden by 483-Billion over five years. Iowa Republican Party chairman Kayne Robinson says it sets up a classic clash between the Forbes Flat Tax and Bush’s alternative.An aide to Forbes said his candidate showed up this morning to show he could go into “Indian territory” and prove he wasn’t scared of Bush.