Democrat Ruben Gallego's lead over Republican Kari Lake remained narrow, but steady in counting the day after the election.

Election Day was Tuesday in Arizona, and voters had a chance to fill one seat in the race for the state's U.S. Senate seat. Currently held by independent Kyrsten Sinema, the seat is a six-year term that overlaps current Sen.

U.S. Rep. Ruben Gallego's lead over Kari Lake in the race for Arizona's open U.S. Senate seat swelled on Thursday evening.