Complex sentence: A Democrat, she advocated for conservative causes and is particularly remembered for her campaigns against the Social Security tax, and ran for Governor of Mississippi in 1951 and 1955, the first woman to do so.
Split into simpler sentences: A Democrat, she advocated for conservative causes and is particularly remembered for her campaigns against the Social Security tax. She ran for Governor of Mississippi in 1951 and 1955, the first woman to do so.