The Washington Post reports that Vice President Joe Biden appears to be a political liability for President Barack Obama:

Almost every recent poll has shown Biden’s numbers at a low point, with more voters viewing him unfavorably than viewing him in a positive light — though in most cases, it’s only by a few points. Biden’s favorable rating, which was well into the 50s when he and Obama won the 2008 election and took office in 2009, has fallen to around 40 percent in most polls. An NBC/Wall Street Journal poll recently pegged his favorable rating at 35 percent (37 percent negative), while a Fox News poll showed the split at 41 percent favorable and 44 percent unfavorable. Also, swing state polls conducted recently by Purple Strategies showed Biden has an even more negative image in the four states tested — Colorado, Florida, Ohio and Virginia. In the four combined, his favorable rating was 41 percent and his unfavorable rating was 48 percent. ... Biden isn’t overwhelmingly popular with many demographic groups, and only 10 percent of Americans have a strongly favorable view of him, according to a recent Pew Research poll. The Pew poll — the one recent poll that actually had Biden’s favorable rating higher than his unfavorable rating — shows Biden’s favorable rating with those making less than $30,000 a year is 40 percent. Even among Hispanics, whom Biden seemed to hit it off with at the National Council of La Raza conference, his favorable rating is 38 percent.