Rep. Kyrsten Sinema, D-Ariz., has defeated her Republican challenger Rep. Martha McSally in their race to represent Arizona in the U.S. Senate, after a new tranche of ballots from Maricopa County were counted Monday evening.

According to the Arizona secretary of state’s office, Sinema received 49.68 percent, or 1,097,321, of votes while McSally received only 47.96 percent, or 1,059,124 votes. The Associated Press called the race at approximately 7:43 p.m. EST.