The latest Pew poll has President Obama up ten points over Republican challenger Mitt Romney. Coming after a string of bad weeks involving Romney’s taxes and an embarrassing trip to England where he insulted their preparedness for the Olympics, one might expect a bounce for the president. However, Democrats shouldn’t get too excited over Pew’s latest poll. The first thing a Political Science professor would tell you is to look at the internal numbers. This poll gave Democrats a registration advantage of 19 points, a huge oversampling. On the bright side for the Dems, President Obama does enjoy an average 2.7 point lead nationally and an even more comfortable lead in the Electoral College where the election will actually be decided.