Delaware state Sen. Sarah McBride has been elected to the U.S. House and will become the first openly transgender person to serve in Congress. McBride easily defeated Republican John Whalen III on Tuesday in the race for Delaware’s lone House seat.

Sarah McBride, a Delaware state senator, will win her state’s at-large US House seat, making her the first out transgender person to serve in Congress, CNN projects.

Sarah McBride, a Delaware state senator, is projected to become the first openly transgender U.S. House member after defeating Republican John Whalen III.