Brandon Herrera holds a clear edge in the TX-23 contest due to the district’s Republican lean in recent presidential voting and his strong fundraising advantage, which has allowed heavier advertising in the final weeks. The open seat, vacated after Tony Gonzales resigned amid scandal, enabled Herrera to consolidate the GOP nomination without a runoff. Katy Padilla Stout secured the Democratic nomination but trails significantly in cash raised through mid-2026, though national Democratic groups have increased spending to test the race. A recent debate highlighted differences on border security, taxes, and guns. Early voting begins October 19 ahead of the November 3 general election, with ratings from outlets like the Cook Political Report classifying the seat as Likely Republican.