She will make history as the first Republican woman to represent the state in Congress.
A number of prominent Republicans rallied behind her after she announced her campaign for the seat. Former President Donald Trump, House Republican Leader Kevin McCarthy and Louisiana GOP Rep. Steve Scalise — the No. 2 House Republican — all endorsed her out of the nine Republicans running for the seat.
Letlow, a first-time candidate, will avoid a runoff because she secured a majority among the 12-person field.
This is a breaking story and will be updated.