Colorado's primary ballots are going out. Here's what to know.

• In the state Legislature, seven lawmakers are defending their seats. That includes two of the most progressive incumbents, Reps. Elisabeth Epps in House District 6 and Tim Hernández in HD4, who face more moderate challengers.
• In Denver, Democratic candidates Leora Joseph and John Walsh are running for district attorney.

How it works: Voters receive a ballot for the party they are registered with.

• Unaffiliated voters will receive both major party ballots and can participate in either primary, but not both.
• The primary that you vote in is a public record, but not whom you supported.

Zoom in: Voters who live in Congressional District 4 will be asked to select an interim representative to fill the vacant seat until Jan. 3 in the wake of former Republican Rep. Ken Buck's early resignation.

• You can use this map to find out which congressional district you're in.

What's next: In-person voting begins June 10, and 12 voting centers in Denver will open June 17. All ballots are due by 7pm June 25.

Editor's note: This story has been corrected to show voters in Congressional District 4 will not receive an additional ballot to select an interim representative.