Democratic Presidential nominee Barack Obama is planning a return to Nevada tomorrow. Obama will give a speech at the University of Nevada Reno at 8 a.m. Republican Presidential nominee John McCain was scheduled to visit Reno on Thursday, but a McCain spokesman says that appearance has been canceled. Former Massachusetts Governor Mitt Romney will campaign for McCain on Thursday in Elko, while President Bush will appear in Reno on Friday at the White House Conference on North American Wildlife Policy.