Probably didn’t need a magic-8 ball to figure that the Republican War on Women would have negative consequences at the polls.

President Obama has emerged with an impressive lead in swing states around the country — thanks to women voters abandoning the GOP in droves, according to a new USA Today/Gallup poll showing President Obama leading among women voters in the top dozen battleground states by a whopping 18 points — greater than the 12-point gender gap he won with in 2008.

One month ago, the same poll showed Mitt Romney leading the president by 2 percentage points; but Sunday, the newest poll gave Obama a 9-point lead, 51 percent to 42 percent.

H/T TPM.