Sen. Mary Elizabeth Coleman

Sen. Mary Elizabeth Coleman, R-Arnold, introduces her bill on initiative petitions on Feb. 11, 2024.

Missouri Senate Democrats are blocking a vote on setting a higher threshold for passing constitutional amendments, filibustering a bill they see as a pure Republican power grab.

For more than five hours Monday and again for almost six hours on Tuesday, Democrats held the floor to discuss their objections to a proposal to require constitutional amendments on the ballot to pass in five of the state’s eight congressional districts along with achieving a statewide majority.