An Illinois House committee has approved new legislative districts despite opposition from a leading Latino advocacy group.

The districts drawn by Democrats advanced on a party-line vote. It’s not clear when the full House might vote.

The proposal got a thumbs-down from MALDEF, the Mexican American Legal Defense and Educational Fund. The group says it would fracture the Latino population on Chicago’s South Side and dilute their strength at the ballot box.

But other Latino groups have said the redistricting maps are fair.

Lawmakers are going through the once-a-decade exercise of redrawing the state’s political map based on new U.S. Census numbers. Democrats are in charge of the process because they control the Legislature and the governor’s office.