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July 12- - New Jersey Gov. Chris Christie has a four-point lead in a hypothetical Presidential race against Barack Obama, while Mitt Romney, Tim Pawlenty, Ron Paul, Herman Cain, Rick Perry and Michele Bachmann are in statistical ties with Obama, a new IBOPE Zogby survey finds.

The percentage of all voters who believe Obama deserves re-election continues to slide, and is now 36%, yet his job approval rating remains at 42%.

In the Republican race for the Presidential nomination, Bachmann continues to lead among announced candidates; but in an expanded field that includes Rick Perry, Christie and Sarah Palin, Perry vaults to the lead.

Perry had a three-point lead over Bachmann on June 30, but now leads her by six. Among only announced candidates, Bachmann has dropped six points since June 30, but still leads with 28%, followed by Cain, Romney and Paul.

The IBOPE Zogby interactive poll was conducted from July 8-11.

Match-Ups With Barack Obama

If the election for President were held today and the candidates were Democrat Barack Obama and each of the following Republicans, for whom would you vote?

GOP Candidate

Obama 

Opponent 

Someone else 

Not Sure

Chris Christie

41%

45%

6%

8%

Mitt Romney

42%

43%

12%

3%

Rick Perry

42%

43%

8%

7%

Tim Pawlenty

41%

41%

11%

8%

Herman Cain

42%

42%

11%

6%

Ron Paul

40%

40%

14%

6%

Michele Bachmann 

44%

42%

9%

6%

Rick Santorum

44%

39%

12%

6%

Jon Huntsman Jr. 

39%

31%

18%

12%

Sarah Palin

47%

37%

13%

3%

Newt Gingrich

45%

33%

19%

4%

Do you think President Obama deserves to be re-elected or do you think it is time for someone new?

Response

July 
11

July 
5

June 
21

June 
9

June 
6

May 
31

May 
9

May 
5

April
25

Obama deserves
to be re-elected

36%

38%

39%

39%

41%

41%

41%

42%

37%

Time for someone new 

54%

56%

55%

52%

53%

51%

50%

53%

57%

Not sure

10%

6%

7%

9%

7%

8%

10%

6%

6%

Totals may not add up to 100% due to rounding 

Overall, do you approve or disapprove of Barack Obama's job as president?

Obama Job Performance

July 12

July  5 

June  21

June  9 

June  6 

May  31

May  23

May  9 

May  5 

April  25

April  15

April 7

Approve

42%

42%

43%

43%

46%

48%

48%

48%

46%

41%

43%

42%

Disapprove

58%

58%

56%

56%

53%

52%

51%

52%

54%

59%

57%

57%

Not sure

1%

1%

1%

1%

1%

0%

1%

0%

<1%

<1%

1%

1%

Totals may not add up to 100% due to rounding