SAN DIEGO ---- Republican 50th Congressional District candidate Brian Bilbray avoided what could have proven a thorny encounter Wednesday, after U.S. Sen. John McCain pulled out of a campaign fundraiser for Bilbray on the eve of the event. Adding to the dicey nature of 11th hour cancellation, Bilbray adamantly opposes an immigration reform measure McCain helped craft ---- a bill that is supported by Francine Busby, Bilbray's Democratic opponent in the race to temporarily fill the seat formerly held by Randy "Duke" Cunningham. McCain skipped the $250-a-plate breakfast at a San Diego hotel, because of "differences" over a solution to...