Reuters: How Colorado will draw its new districts

Scott Martinez, a lawyer who drew congressional redistricting maps for Democrats that were used in 2001 and 2011, said he was optimistic for a fair outcome in Colorado, a former swing state that has trended Democratic in recent presidential elections.

He said he would watch the commissioners carefully, given they are new to the redistricting process and lack the accountability state lawmakers have to their electorates.

"My hope is that the benevolence of these commissioners finds a way to grant equality to our ethnic minorities, but there's no mandate on them to do so," he said.