The city has lost out on several conventions due to begging in downtown, say some in the business community.
Once the three Democrat-held seats are eliminated, Republicans will control the city-county council.
Evans says he grew tired of the "shenanigans" in the Marion County Democratic Party.
The Community Affairs Committee voted unanimously Wednesday to approve the proposal. It now goes to the ciity-county council.
A proposal requiring public disclosure of pay raises for government employees comes after Mayor Greg Ballard gave raises to his staff.