A mail-in ballot election ends Tuesday for the city of Tempe.

Candidates for three City Council seats are on the ballot as well as three propositions.

Proposition 402 is a proposed charter amendment for Papago Preserve.

Proposition 403 targets so called “dark money” by requiring disclosure of original and intermediary sources of major contributions used to influence city elections.

Proposition 404 would allow the city to spend more money on things like public safety and transit operations.

Remaining ballots can be dropped off at ballot centers until 7 p.m.