Primaries and Caucuses
| Tuesday, February 23 | Nevada Republican caucuses |
| Saturday, February 27 | South Carolina Democratic primary |
| Tuesday, March 1 | Alabama, Alaska Republican caucuses American Samoa Democratic caucuses Arkansas Colorado caucuses (both parties, no preference vote for Republicans) Democrats Abroad party-run primary Georgia Massachusetts Minnesota caucuses (both parties) North Dakota Republican caucuses Oklahoma Tennessee Texas Vermont Virginia Wyoming Republican caucuses |
| Saturday, March 5 | Kansas caucuses (both parties) Kentucky Republican caucuses Louisiana Maine Republican caucuses Nebraska Democratic caucuses" |
| Sunday, March 6 | Maine Democratic caucuses Puerto Rico (Republicans only) |
| Tuesday, March 8 | Hawaii Republican caucuses Idaho (Republicans only) Michigan Mississippi" |
| Thursday, March 10 | Virgin Islands Republican caucuses |
| Saturday, March 12 | Guam Republican convention Northern Mariana Islands Democratic caucuses Washington, DC Republican convention |
| Tuesday, March 15 | Florida Illinois Missouri North Carolina Northern Mariana Islands Republican caucuses Ohio |
| Tuesday, March 22 | American Samoa Republican convention Arizona Idaho Democratic caucuses Utah caucuses (both parties) |
| Saturday, March 26 | Alaska Democratic caucuses Hawaii Democratic caucuses Washington Democratic caucuses" |
| Friday-Sunday, April 1-3 | North Dakota Republican state convention |
| Tuesday, April 5 | Wisconsin |
| Saturday, April 9 | Colorado Republican state convention Wyoming Democratic caucuses |
| Tuesday, April 19 | New York |
| Tuesday, April 26 | Connecticut Delaware Maryland Pennsylvania Rhode Island |
| Tuesday, May 3 | Indiana |
| Saturday, May 7 | Guam Democratic caucuses/convention |
| Tuesday, May 10 | Nebraska (Republicans only) West Virginia" |
| Tuesday, May 17 | Kentucky (Democrats only) Oregon |
| Tuesday, May 24 | Washington (Republicans only, Democratic beauty contest) |
| Saturday, June 4 | Virgin Islands Democratic caucuses |
| Sunday, June 5 | Puerto Rico Democratic caucuses |
| Tuesday, June 7 | California Montana New Jersey New Mexico North Dakota Democratic caucuses South Dakota |
| Tuesday, June 14 | Washington, DC (Democrats only) |
