Argentina could be a wildcard on the corn export market, provided that crop gets sown, if the leading presidential candidate wins and fulfills his promises regarding certain reforms.Sunday, 22 November is the runoff presidential election in Argentina, which follows the initial election on 25 October between six candidates. Under Argentine electoral rules, a presidential candidate needs to win 45 percent of the initial vote outright or 40 percent with a ten-point margin over the runner-up. If there is no winner in the first round, the top two candidates move to a runoff.As we predicted (see Ag Perspectives, 23 October), a runoff was likely between Daniel Scoli, the outgoing governor of Buenos Aires Province and Mauricio Marci, the current ma...