Key 2008 U.S. presidential events

MAY

* May 13: West Virginia

* May 20: Kentucky, Oregon

JUNE

* June 1: Puerto Rico

* June 3: Montana, South Dakota

AUGUST

* Aug. 25-28: Democratic National Convention in Denver

SEPTEMBER

* Sept. 1-4: Republican National Convention in Minneapolis-St. Paul, Minnesota

NOVEMBER

* Nov. 4: Election Day

Source: National Association of Secretaries of State