February 3: Iowa caucus.
February 11: New Hampshire primary.
February 22: Nevada Democratic caucus.
February 29: South Carolina Democratic primary
March 3 – Super Tuesday: Alabama, Arkansas, California, Colorado, Maine, Massachusetts, Minnesota, North Carolina, Oklahoma, Tennessee, Texas, Utah, and Vermont primaries, Virginia Democratic primary, American Samoa Democratic caucus. Democratic voters living overseas also cast primary ballots.
March 8: Puerto Rico Republican primary.
March 10: Idaho, Michigan, Mississippi, Missouri, and Washington primaries, Hawaii Republican caucus, North Dakota Democratic primary.
March 14: Northern Marinara Islands Democratic caucus.
March 17: Florida, Illinois, and Ohio primaries, Arizona Democratic primary.
March 24: Georgia primary, American Samoa Republican caucus.
March 27: North Dakota Republican convention.
March 29: Puerto Rico Democratic primary.
April 4: Alaska, Hawaii, and Wyoming Democratic primaries/caucuses, Louisiana primary for both parties.
April 7: Wisconsin primary.
April 28: Connecticut, Delaware, Maryland, New York, Pennsylvania, and Rhode Island primaries.
May 2: Kansas and Guam Democratic primary/caucus.
May 5: Indiana primary.
May 12: Nebraska and West Virginia primaries.
May 19: Kentucky and Oregon primaries.
June 2: Montana, New Jersey, New Mexico, South Dakota, and District of Columbia primaries.
June 6: US Virgin Islands Democratic caucus.
Tuesday, January 14: CNN and the Des Moines Register will host the seventh Democratic debate at Drake University in Des Moines, Iowa.
Friday, February 7: ABC News and WMUR-TV in partnership with Apple News will host the eighth debate at St. Anslem’s College in Manchester, New Hampshire.
Wednesday, February 19: MSNBC and The Nevada Independent will host the ninth debate in Las Vegas, Nevada.
Tuesday, February 25: CBS News and the Congressional Black Caucus Institute in partnership with Twitter will host the tenth debate in Charleston, South Carolina.
September 29: First presidential debate at Notre Dame University in South Bend, Indiana.
October 7: Vice presidential debate at the University of Utah at Salt Lake City.
October 15: Second presidential debate at the University of Michigan at Ann Arbor.
October 22: Third presidential debate at Belmont University in Nashville, Tennessee.