(ABCNEWS.GO) — Barack Obama approaches his nomination for a second term with the lowest pre-convention personal popularity of an incumbent president in ABC News/Washington Post polls since the 1980s. He’s also at his lowest of the year among registered voters, with trouble among women.

Just 47 percent of registered voters in the latest ABC News/Washington Post poll see Obama favorably overall, down 7 percentage points from his recent peak in April, while 49 percent rate him unfavorably. He’s numerically underwater in this group for the first time since February.

The decline has occurred entirely among women registered voters – from 57-39 percent favorable-unfavorable in April to a numerically negative 46-50 percent now. That’s Obama’s lowest score among women voters – a focus of recent political positioning – in ABC/Post polls since he took office. Unusually, his rating among men, 50-47 percent favorable-unfavorable, is numerically better than it is among women, albeit not by a significant margin.

Note: Read our discussion guidelines before commenting.