Virginia Delegate Eric Phillips (R-Martinsville) has introduced HB 1056, to amend the voter registration form to let applicants choose a party, and also to allow each party to decide for itself who can vote in its primaries. Parties could choose to let independents vote in their primaries, or choose to close their primary to party members, or choose to let all registered voters vote in their primaries.

The bill is ambiguous as to whether the voter registration form would list any parties with a checkbox, or just depend on a write-in line.

Two bills have been introduced in the Missouri legislature to change the state from an open primary state to a closed primary state. The bills are SB 1329 by Senator Rick Brattin (R-Harrisonville) and HB 2380 by Representative John Simmons (R-Washington).

Hawaii State Senator Mike Gabbard (D-Kapolei) has introduced SB 2480. It establishes a top-two primary. If the bill were enacted, parties would no longer have nominees except for president, so they would no longer be able to be ballot-qualified unless they could receive 10% for president. Senator Gabbard is the father of Tulsi Gabbard.