Bentley Rayburn officially launched his campaign Thursday to unseat a fellow Republican, Congressman Doug Lamborn, by touting himself as "best positioned to reunite this party." Rayburn, who finished third in last year's primary for what was then an open seat, becomes the second challenger in the 2008 race, joining 2006 primary runner-up Jeff Crank. Lamborn has not made his re-election bid official, but he is raising money. Rayburn, a retired Air Force major general, devoted a good portion of his speech to "the war against radical Islam." He said the ongoing battle is a multi-generational struggle that will not be...