TOPEKA, Kan. (AP) — The Kansas House has given first-round approval to a resolution calling for a convention to propose changes in the U.S. Constitution to lessen the federal government’s power.

The vote Thursday was 77-44 on calling for a convention of the states. But conservative Republicans backing the idea will need a two-thirds majority of 84 votes in the 125-member chamber to prevail in a final vote Monday.

The U.S. Constitution allows 34 states to call for such a convention, and supporters anticipate each state having one vote in it. Constitutional changes still would have to be ratified in 38 states for them to take effect.

Supporters of the convention said the federal government is out of control. But Democratic Rep. Ed Trimmer of Winfield said he sees “too much opportunity for mischief.”