John Cowan secured the Republican nomination for Georgia’s 11th congressional district after winning a June 2026 runoff against Rob Adkerson, following the retirement of incumbent Barry Loudermilk. The district, which covers northern Atlanta suburbs and exurbs, has a strong Republican baseline, reflected in Donald Trump’s 18.5-point margin there in 2024 and consistent “Solid Republican” ratings from forecasters. Cowan, a neurosurgeon and prior congressional candidate, holds a substantial fundraising advantage and benefits from the district’s partisan composition. Chris Harden, an attorney who won the Democratic primary, remains the underdog with limited resources. Trader consensus at 95 percent for Cowan aligns with these structural factors; shifts would require unforeseen developments such as a major scandal or significant national political realignment before the November 3 general election.