New poll numbers from CNN:

44 percent of registered voters say Obama deserves re-election, with 52 percent saying the president does not deserve a second term in office. The survey also indicates that 49 percent of Americans approve of the job Obama’s doing as president, with half of the public disapproving of his job in the White House.

Also of interest:

The CNN/Opinion Research Corp. poll, released Tuesday, indicates that only 34 percent feel that current federal lawmakers deserve re-election, with 63 percent saying no.
According to the survey, 51 percent feel their member of Congress should be re-elected – also an all-time low in CNN polling – while 44 percent say their representative doesn’t deserve to be returned to office in November.
The numbers on both questions are even lower than in 1994, when an anti-incumbent fever helped Republicans win back control of both the House and the Senate from Democrats. The trend line on those questions goes back to 1991, when they were first asked.