Primary/caucus calendar for the Democratic and Republican nominating process. This schedule is current as of December 28, 2007
Democratic Primary/Caucus Schedule

January 2008

* January 3: Iowa
* January 8: New Hampshire
* January 15: Michigan
* January 19: Nevada
* January 26: South Carolina (Democratic only)
* January 29: Florida

February 2008

* February 5: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Georgia, Idaho (Democratic only), Illinois, Kansas (Democratic only), Massachusetts, Minnesota, Missouri, New Jersey, New Mexico, (Democratic only), New York, North Dakota, Oklahoma, Tennessee, Utah
* February 9: Louisiana
* February 10: Maine (Democratic only)
* February 12: District of Columbia, Maryland, Virginia
* February 19: Hawaii (Democratic only), Washington, Wisconsin

March 2008

* March 4: Ohio, Rhode Island, Texas, Vermont
* March 8: Wyoming (Democratic only)
* March 11: Mississippi

April 2008

* April 22: Pennsylvania

May 2008

* May 6: Indiana, North Carolina
* May 13: Nebraska, West Virginia
* May 20: Kentucky, Oregon

June 2008

* June 3: Montana, South Dakota

August 2008

* August 25-28: Democratic National Convention (Denver, Colorado)

Republican Primary/Caucus Schedule

January 2008

* January 3: Iowa
* January 5: Wyoming (Republican only)
* January 8: New Hampshire
* January 15: Michigan
* January 19: Nevada, South Carolina (Republican only)
* January 29: Florida

February 2008

* February 1: Maine (Republican only)
* February 5: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Georgia, Illinois, Massachusetts, Minnesota, Missouri, New Jersey, New York, North Dakota, Oklahoma, Tennessee, Utah
* February 9: Louisiana, Kansas (Republican only)
* February 12: District of Columbia, Maryland, Virginia
* February 19: Washington, Wisconsin

March 2008

* March 4: Ohio, Rhode Island, Texas, Vermont
* March 11: Mississippi

April 2008

* April 22: Pennsylvania

May 2008

* May 6: Indiana, North Carolina
* May 13: Nebraska, West Virginia
* May 20: Kentucky, Oregon
* May 27: Idaho (Republican only)

June 2008

* June 3: Montana, New Mexico (Republican only), South Dakota

September 2008

* September 1-4: Republican National Convention (Minneapolis-St. Paul, Minnesota)

[Source: National Association of Secretary of States]