PROVO — Laura Bush is campaigning for Utah Congressman Chris Cannon. With both Cannon and challenger John Jacob poised to release television ads, the first lady recorded a phone message last week asking Republicans in Utah's 3rd District to vote for Cannon in the party's June 27 primary. "We need Chris in Congress so he can continue securing our borders, protecting our families and helping make the president's tax relief permanent," Bush said in the message, which hasn't been released yet Word of the White House endorsement leaked to the Jacob camp over the weekend through a Republican Party channel....