The following is a look at the political calendar in April 2016 state by state:
- Alabama- NO events
- Alaska- State convention held April 28th-30th
- Arizona- County and legislative district meetings being held until April 9th; State convention and Congressional district caucus April 30th
- Arkansas- Special district convention April 30th
- California- NO events
- Colorado- Filing deadline for Senate and Congressional District races April 4th; District conventions April 8th; State convention April 9th
- Connecticut- PRESIDENTIAL PRIMARY April 26th
- Delaware- PRESIDENTIAL PRIMARY April 26th; State convention April 29th-30th
- Florida- NO events
- Georgia- District conventions April 16th
- Hawaii- NO events
- Idaho- NO events
- Illinois- NO events
- Indiana- Congressional district caucus April 9th
- Iowa- District statutory caucus April 9th
- Kansas- Congressional district conventions continue through April 23rd
- Kentucky- NO events
- Louisiana- NO events
- Maine- District caucuses and state convention April 21st to April 23rd
- Maryland- PRESIDENTIAL PRIMARY April 26th; Senate and Congressional district primaries April 26th also
- Massachusetts- Congressional district convention April 23rd
- Michigan- Congressional district caucus and state convention April 8th and 9th; Filing deadline for Congressional district races April 19th
- Minnesota- District conventions start April 22nd
- Mississippi- Precinct caucuses and County Presidential conventions April 23rd
- Missouri- Local caucuses April 9th; Congressional district conventions April 30th
- Montana- NO events
- Nebraska- County conventions April 1st through 10th
- Nevada- NO events
- New Hampshire- NO events
- New Jersey- Filing deadline for Congressional district races April 4th
- New Mexico- County conventions April 16th through April 30th
- New York- PRESIDENTIAL PRIMARY April 19th; Filing deadline for Senatorial and Congressional district races April 14th
- North Carolina- District conventions held throughout the month
- North Dakota- Filing deadline for Gubernatorial and at-large Congressional district races April 11th
- Ohio- No events
- Oklahoma- Filing deadline for Senatorial and Congressional district races April 15th; District conventions April 16th
- Oregon- NO events
- Pennsylvania- PRESIDENTIAL PRIMARY April 26th; Senatorial and Congressional district primaries April 26th also
- Rhode Island- PRESIDENTIAL PRIMARY April 26th
- South Carolina- District conventions held throughout the month
- South Dakota- NO events
- Tennessee- State Executive Committee Meeting April 2nd; Filing deadline for Congressional district races April 7th
- Texas- No events
- Utah- State convention April 23rd
- Vermont- NO events
- Virginia- State convention April 30th
- Washington- NO events
- West Virginia- NO events
- Wisconsin- PRESIDENTIAL PRIMARY April 5th; District caucuses April 6th through April 17th
- Wyoming- State convention April 14th to April 16th