With just two days before the election, two of Nevada’s most respected political observers say they expect Barack Obama to claim the state’s electoral votes over challenger Mitt Romney.But both Eric Herzik, chairman of the Political Science Department at University of Nevada, Reno, and Fred Lokken, dean of Webcollege at Truckee Meadows Community College and a political science professor, say they have doubts Obama’s support will help Shelley Berkley beat Dean Heller in the U.S. Senate race.The “split ticket” analysis was veteran Republican consultant Pete Ernaut’s take on those two races as well, in an interview on “Nevada Newsmakers” recently.Both …