Amendment 75 would relax some state campaign contribution restrictions if a candidate in a given race gave $1 million or more to his or her own campaign or third-party committee.

The measure would allow candidates in such races to accept five times the level of individual contributions currently allowed. Those are $1,150 for statewide offices like governor and secretary of state, and $400 for local races.

Proponents say it would help level the playing field between wealthy candidates and others. Opponents say the measure would further complicate the state's campaign finance system without addressing underlying inequality issues. 

The measure would change the state constitution, and under new rules passed by voters in 2016, needs 55 percent of votes to pass.