In a new ABC News/Washington Post poll, Bush's approval rating is at 53% -- his lowest ever in the poll. As for the matchup with a generic Democrat,

If the 2004 presidential election were today, 46 percent of Americans say they would vote to re-elect Bush, while 47 percent would favor the Democratic candidate — the president's weakest showing to date in this so-called generic horse race. (It's 44 percent to 49 percent among registered voters). Bush's lead [sic] in this test is down from +13 in April, +8 in August and +5 last month.

Women favor a Democrat over Bush, 50%-42%; men favor Bush, 50%-44%. Bush wins whites, 53%-39%, but loses nonwhites, 23%-74%. Higher-income people favor Bush, lower-income people the Democrat. All pretty much what you'd expect.