The election between Democrat Jon Ossoff and Republican Karen Handel to replace the seat vacated by Tom Price becomes the most expensive congressional race in United States history.
- Campaigning ends and voting begins in the suburbs of Atlanta in the U.S. state of Georgia between Republican Karen Handel and Democratic Jon Ossoff, where Republican Handel wins the election by a narrow margin.
- Both Paul Ryan and Tom Perez plan to campaign for the local candidates Karen Handel and Jon Ossoff respectively.
- The campaign of Jon Ossoff wins a lawsuit extending voter registration.
- In a meeting for the NRA, U.S. president Donald Trump criticizes Democratic candidate Jon Ossoff.
- Local Republican candidate Karen Handel says she wants Donald Trump to campaign for her in the district.
- In its third strike near the town of Al-Tanf in recent weeks, the United States bombs Syrian government and allied troops, striking two out of three technical vehicles about 24 miles from the U.S. Coalition's At-Tanf base in Southern Syria.
- An explosive device is hurled at the United States embassy in Kiev.
- A discharged 45-year-old former employee shoots and kills five people at a manufacturing business in Orlando, Florida, United States. The shooter took his own life afterwards. Eight others inside the workplace survived.
- The U.S.-backed Syrian Democratic Forces (SDF) take control of the Baath Dam on the Euphrates, near the ISIL stronghold of Raqqa, and upon doing so, rename it "Freedom Dam".
- Robert Kaplan, head of the Federal Reserve Bank of Dallas, says that low bond yields suggest sluggish growth ahead for the economy of the United States.