Sen. John Kerry says he deserves a second chance if he decides to take another crack at becoming president. The Massachusetts Democrat, who lost to President Bush in 2004, said it is a basic principle that "Americans give people a second chance. And if you learn something and prove you've learned something, maybe even more so. Now, I don't know what I'm going to do yet. We'll make that decision down the road." Ronald Reagan twice unsuccessfully sought the GOP nomination for president before he got it — and won two elections for the White House. "John McCain, their leading...