Many Republicans seem ready to agree to Obama's demands for tax increases -- after all, elections have consequences, and he won, right? Maybe, but before agreeing to anything, the GOP should probably look a little more carefully at just who elected Obama. Dr. Robert Vanderbei, a professor of Operations Research at Princeton, developed the visualization shown above by combining Democrat blue with GOP red according to popular vote proportions taken at the county level and printing the result as a 3D map in which apparent vertical height is a stand-in for the number of voters counted.Nationally, Obama won the popular...