At Iowa’s State Fair, Candidates Brave Cholesterol and Hecklers

DES MOINES — There are 75 foods on a stick, including apple pie and gluten-free corn dogs. There is a cow sculpted from butter. And there are 18 presidential candidates in a bipartisan stampede to the Iowa State Fair — bringing their stump speeches, of course, but more important, aiming to prove their common touch in the ultimate venue for retail campaigning.