The Constitution requires a 75% majority of states to ratify a proposed amendment. As states ratified the 19th Amendment, Alice Paul sewed a star on the suffragist flag. Ratification came down to one last state—Tennessee. On August 18, 1920, just before the ratification deadline, the Tennessee House of Representatives voted in favor with 50 of the 99 voting for ratification. Women had finally won the right to vote by the margin of one vote.