The latest state-by-state polling from Rasmussen Reports shows Mitt Romney leading President Obama by a tally of 279 to 243 in projected electoral votes.   Among the nine key swing states, Rasmussen Reports now shows Romney leading in Florida ( by 2 percentage points), Ohio ( by 2 points), Virginia ( by 2 points), Colorado ( by 4 points), and New Hampshire ( by 2 points).  It shows Obama leading in Pennsylvania ( by 5 points) and Nevada ( by 2 points).  It shows Wisconsin (49 percent to 49 percent) and Iowa ( 48 percent to 48 percent) tied.