TAMPA — Her business card is utterly ordinary. No big titles. No hint of connections with the military and political elite. It lists her address, her phone number and her name in elegant script: "Honorable Jill G. Kelley." But the outsized portrait of herself that Kelley presents to the world will fit on no card. It's seen in her emails to Tampa Mayor Bob Buckhorn and others. She drops names. She mentions lunch at the White House in a casual aside, one of three visits she has made there in the last six weeks. The top U.S. general in Afghanistan...