Secretary of State Jason Kander and Rep. Kevin McManus, both Kansas City Democrats, scheduled a news conference Tuesday to outline the legislation.

Missouri is the only state with no limits on campaign contributions or lobbyist gifts and no revolving-door ban on lawmakers becoming lobbyists immediately after leaving office.

The Democrats’ measure is unlikely to gain traction in Missouri’s Republican-dominated Legislature, where Democrats have pushed such bills in the past. Democratic Gov. Jay Nixon has also previously urged the Legislature to reinstate campaign contribution caps.

There are GOP bills to institute a revolving-door policy and measures that would institute caps on campaign contributions.