From Karl Rove’s Polling News & Notes:

President Obama’s job approval rating has fallen to 52% in the most recent weekly Gallup poll (8/17-8/23), down 15 points from its high in January. Obama’s popularity was still as high as 60% at the end of the first week of July. Since then, his approval rating has dropped sharply with key swing demographic groups, falling 15 points with liberal and moderate Republicans, 14 points with Hispanics, 13 points with voters aged 18-29, 13 points with voters who attend church nearly every week or monthly, and 12 points with voters earning between $60,000 and $90,000 per year (-12).