David Schwarz, who was a Kingston policy advisor and now runs a government affairs firm, announced on Wednesday that he'll seek the Savannah-based seat now that Kingston is running for the Senate.

"It is with great enthusiasm and a humble heart that I announce my candidacy for Congress in the First District of Georgia," Schwarz said in the statement. "Jack Kingston has been a tremendous representative for our area, and I am proud to call him my friend and to have worked by his side for our community. Now, it is time for the next generation of conservative leadership."

Schwarz joins state Sen. Buddy Carter (R) in the GOP field in the Republican-leaning district.

Two factors could play a big role in this primary. If Kingston, who's popular in the area, gets involved on Schwarz's behalf that could give him a boost. But national conservative groups have their eye on Georgia's open House seats as an opportunity to make the state's delegation more conservative, and are not a fan of Kingston. Some of those organizations could play there as well.