U.S. Rep. Doug Collins’ decision to run for the U.S. Senate means that his seat is open, but the demographics of the district make it unlikely that a Democrat will win in the 9th Congressional District.

As a result, most of the focus ahead of Tuesday’s primary has been on the nine Republicans in the race. The northeast Georgia district encompasses all or part of 20 counties.

High-profile GOP candidates include state Reps. Matt Gurtler and Kevin Tanner, state Sen. John Wilkinson, former U.S. Rep. Paul Broun and attorney Ethan Underwood.

Three Democrats are running in that party’s primary.

Below, we have provided you with a rundown of The Atlanta Journal-Constitution’s coverage of these candidates, including links to our own articles, videos of them in debate and their campaign websites.

Voters looking for information on how to submit their ballots should check out the AJC's "how to vote" guide. Those who want to download sample ballots and confirm which races they will be casting votes for should visit Georgia's My Voter Page.

9th District Republican candidates

Michael Boggus, crane operator, boggusforcongress.com

Paul Broun, former U.S. representative and physician, paulbroun.com

Andrew Clyde, gun store owner, clyde4congress.com

Matt Gurtler, general contractor, www.mattgurtler.com

Maria Strickland, retired law enforcement officer, www.strickland4congress.com

Kevin Tanner, state representative and poultry farmer,  www.votekevintanner.com

Ethan Underwood, attorney, www.voteethanunderwood.com

Kellie Weeks, gun store owner, www.kellieforcongress.com

John Wilkinson, state senator, farmer and educator, www.votewilkinson.com

9th District Democratic candidates

Devin Pandy, veteran, devinpandyforcongress.com

Brooke Siskin, business owner, www.brookeforamerica.com

Dan Wilson, retired minister, www.danwilsonforcongress.com

Candidate Q&A

The AJC posed a series of policy questions to the Republican candidates. Their responses are compiled here.

Debate coverage

The candidates, separated by party, also participated in the Atlanta Press Club's debate on May 3. Read our article about the debates, or watch them in their entirety on YouTube: Republicans here and Democrats here.

An organization called Candidate Video Debate also boiled down each candidate's responses into short videos that you can watch: Democrats or Republicans.

Fundraising

Read the AJC's coverage of the most recent campaign finance reports and an earlier article about the first-quarter numbers.

Additional AJC articles

MORE: Voter guide for June 9 primary and general election

COMPLETE COVERAGE: Georgia elections