finished a reasonably strong third with 18 percent of the caucus vote. Alexander himself offered the best analysis of what that means. "I think what we're going to have coming out of Iowa," he said on Sunday, "is a weak Dole, a falling Forbes, a rising Buchanan and a rising Alexander. And of that field, I'm the most likely to be nominated." Finally, the Iowans deserve thanks for dealing a coup de grace to Texas Senator Yertle the Turtle, who will presumably crawl back inside his shell to await the millennium.