Winningest state? Loser state?

[MHS2002]

Hmm...I don't have much to do so I will try and figure it out.

[MHS2002]

Since 1900, Missouri and Ohio have each voted for the winning President 24 of 26 times.

Missouri: "wrong" in 1900 and 1956.
Ohio: "wrong" in 1944 and 1960.

Mississippi is the worst state. It voted for the winning President 12 out of 26 times. I'll get a full breakdown up in a few.

[MHS2002]

Since 1900:

24: Missouri
      Ohio

23: Nevada

22: California
      Delaware
      Illinois
      Maryland
      Montana
      New Jersey
     
21: Idaho
      New Hampshire
      New Mexico (beginning in 1912)
      New York
      Tennessee
      Utah
      West Virginia
      Wyoming

20: Connecticut
      Massachusetts
      Oregon
      Pennsylvania
      Rhode Island
      Washington
      Wisconsin

19: Arizona (beginning in 1912)
      Colorado
      Florida
      Iowa
      Kansas
      Kentucky
      Michigan
      Minnesota
      North Dakota
      Oklahoma (beginning in 1908)
     
18: Indiana
      Nebraska
      Texas

17: Arkansas
      North Carolina
      South Dakota
      Virginia

16: Louisiana
      Maine

15: Georgia
      Vermont

14: South Carolina

13: Alabama

12: Mississippi

7: Alaska (beginning in 1960)
    Hawaii (beginning in 1960)

4: Washington, D.C. (beginning in 1968)