Democrat TJ Cox takes advantage over Republican David Valadao in the country's last indecisive home race

In Orange County, Gil Cisneros, who won the seat at Royce, and Katie Porter, who beat Walters, increased their margins to 3 percentage points. Democrat Harley Rouda, who defeated Rohrabacher, broadened the election night from 2,700 votes to nearly 20,000 votes.