Obama v Romney: US election poll tracker

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Roll over the graph for poll data and key events

The race to the White House is a close call with the two candidates neck-and-neck in the days before the election. Use our polltracker to follow the changing support for Democratic incumbent Barack Obama and his Republican rival Mitt Romney.

The BBC poll of polls uses the same methodology as the London School of Economics, known as the median smoothing method.

Looking at the five most recent polls it takes the middle value for each candidate, ie, the value which falls between two figures that are higher and two figures that are lower.

Polls compiled in the poll tracker

Poll Obama Romney Date Margin of Error Sampling Method

Pew Research

50

47

4 Nov

+/-2.2

2709 LV

Gallup

49

50

4 Nov

+/-2

2700 LV

ABC News/Wash Pos

50

47

4 Nov

+/-2.5

2345 LV

CNN/Opinion Research

49

49

4 Nov

+/-3.5

963 LV

Pew Research

50

47

3 Nov

+/-2.2

2709 LV

ABC News/Wash Post

49

48

3 Nov

+/-2.5

2069 LV

ABC News/Wash Post

49

49

30 Oct

+/-3.0

1288 LV

ABC News/Wash Post

49

48

29 Oct

+/-3.5

1271 LV

ABC News/Wash Post

49

49

28 Oct

+/-3.5

1259 LV

Gallup

46

51

28 Oct

+/-2

2700 LV

Pew Research

47

47

28 Oct

+/-2.9

1495 LV

Gallup

46

50

27 Oct

+/-2

2700 LV

ABC News/Wash Post

48

49

27 Oct

+/-3

1382 LV

Gallup

46

50

27 Oct

+/-2

2700 LV

Reuters/Ipsos

47

46

26 Oct

+/- 2.6

1141 LV

ABC News/Wash Post

47

50

26 Oct

+/-3

1382 LV

ABC News/Wash Post

48

49

25 Oct

+/-3

1382 LV

Gallup

46

51

25 Oct

+/-2

2700 LV

ABC News/Wash Post

48

49

23 Oct

+/-3

1382 LV

Gallup

47

50

23 Oct

+/-2

2700 LV

Reuters/Ipsos

47

44

17 Oct

+/- 3.3

1141 LV

Gallup

46

50

16 Oct

+/- 3

2723 LV

Reuters/Ipsos

46

43

16 Oct

+/- 2.6

1846 LV

Reuters/Ipsos

47

45

15 Oct

+/- 2.6

1864 LV

Reuters/Ipsos

46

45

14 Oct

+/- 2.5

1793 LV

ABC News/ Wash Post

49

46

13 Oct

+/- 3.5

923LV

Gallup

49

46

8 Oct

+/-2

3050 RV

Pew Research

45

49

7 Oct

+/-3.4

1112 LV

CNN/Opinion Research

50

47

30 Sept

+/-3.5

783 LV

ABC News/Wash Post

49

47

29 Sept

+/-4

813 LV

Gallup

50

44

28 Sept

+/-2

3050 RV

Gallup

47

47

19 Sept

+/-2

3050 RV

Pew Research

51

43

16 Sept

+/-2.4

2268 LV

CBS News/NY Times

49

46

12 Sept

+/-4

1162 LV

Reuters/Ipsos

48

45

10 Sept

+/-3.4

873 LV

ABC News/Wash Post

49

48

9 Sept

+/-4.5

710 LV

CNN/Opinion Research

52

46

9 Sept

+/-3.5

709 LV

Gallup

49

44

9 Sep

+/-2

3050 RV

CNN/Opinion Research

48

48

3 Sep

+/-3.5

735 LV

Gallup

47

46

1 Sept

+/-2

3050 RV

ABC News/Wash Post

46

47

25 Aug

+/-4

857 RV

CNN/Opinion Research

49

47

23 Aug

+/-3.5

719 LV

Gallup

45

47

21 Aug

+/-2

3050 RV

Gallup

46

46

11 Aug

+/-2

3050 RV

Gallup

47

45

1 Aug

+/-2

3050 RV

Pew Research

51

41

26 July

+/-3.2

1956 RV

Gallup

46

46

25 July

+/-2

3050 RV

CBS News/NY Times

46

47

16 July

+/-3

942 RV

Gallup

47

44

11 July

+/-2

3050 RV

Reuters/Ipsos

49

43

9 July

+/-3.4

885 RV

Pew Research

50

43

9 July

+/-2.3

2373 RV

ABC News/Wash Post

47

47

8 July

+/-4

1003 RV

CNN/Opinion Research

49

46

1 July

+/-2.5

1390 RV

Gallup

48

43

28 Jun

+/-2

3050 RV

Pew Research

50

46

17 Jun

+/-2.9

1563 RV

Gallup

45

46

14 Jun

+/-2

3050 RV

Reuters/Ipsos

45

44

11 Jun

+/-3.4

848 RV

Gallup

46

45

8 Jun

+/-2

3050 RV

Pew Research

49

42

3 Jun

+/-2.3

2388 RV

CNN/Opinion Research

49

46

31 May

+/-3.5

895 RV

Gallup

47

44

30 May

+/-2

3050 RV

ABC News/Wash Post

49

46

20 May

+/-4

874 RV

Gallup

45

46

17 May

+/-2

3050 RV

CBS News/NY Times

43

46

13 May

+/-4

562 RV

Gallup

44

47

9 May

+/-2

3000 RV

Reuters/Ipsos

49

42

7 May

+/-3.2

959 RV

The data was collated by polling resource website Real Clear Politics. RV indicates those polled were registered voters. LV indicates a sample of likely voters.

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US Presidential Election 2012

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