As Americans kick off the first holiday weekend of the summer Friday, Sen. John McCain will release 400 pages of his medical records to a handpicked group of reporters who can neither photocopy nor keep the documents, illustrating the sensitivity the campaign places on the 71-year-old candidate's age and health. For more than a year, the four-term senator has repeatedly promised to release his recent medical records, but has not yet done so. The McCain campaign has selected a handful of news organizations to review the records today in a conference room at the Copper Wynd Resort in Fountain Hills,...