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Election Polls -- Accuracy Record in Midterm Congressional Elections

Gallup Poll Accuracy Record: Midterm Congressional Elections


Year


Party

Final Gallup survey,
two-party vote

Election result,
two-party vote

Gallup
deviation

%

%

%

2010

Democrat

42

46

-4

Republican

58

54

+4

2006

Democrat

54

54

0

Republican

46

46

0

2002

Democrat

47

48

-1

Republican

53

52

+1

1998

Democrat

52

50

+2

Republican

48

50

-2

1994

Democrat

46

46

0

Republican

54

54

0

1990

Democrat

54

55

-1

Republican

46

45

+1

1986

Democrat

n/a

55

n/a

Republican

n/a

45

n/a

1982

Democrat

55

56

-1

Republican

45

44

+1

1978

Democrat

54

55

-1

Republican

46

45

+1

1974

Democrat

60

59

+1

Republican

40

41

-1

1970

Democrat

53

54

-1

Republican

47

46

+1

1966

Democrat

53

54

-1

Republican

47

46

+1

1962

Democrat

55

53

+2

Republican

45

47

-2

1958

Democrat

57

56

+1

Republican

43

44

-1

1954

Democrat

52

53

-1

Republican

48

47

+1

1950

Democrat

51

50

+1

Republican

49

50

-1

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