DENVER -- On a night when the wife of the presumptive Democratic nominee for president would take the stage at the Democratic National Convention following an address by the party's most revered elder statesman, it would be hard to imagine how a former congressman from eastern Iowa would even get notice, let alone high marks as one of the most important speeches of the night. Unless, of course, the former congressman was a Republican. So there was Jim Leach, former diplomat, friend of the Bush family and longtime Republican congressman from Iowa City, enjoying the enthusiastic response of thousands of...