Wingo was elected as a Democrat on November 4, 1930, to the 71st Congress to fill the vacancy caused by her husband's death, and on the same day was elected to the 72nd Congress and served from November 4, 1930, to March 3, 1933. She was not a candidate for renomination in 1932.
Wingo was elected as a Democrat on November 4, 1930, to fill the vacant seat in the 71st Congress caused by her husband's death, and at the same time secured a position in the 72nd Congress, serving from November 4, 1930, to March 3, 1933. She declined to run for re-election in 1932.