Lisa Mascaro/Associated Press
Upending the midterm elections, Republican Sen. Lindsey Graham has introduced a nationwide abortion ban. The bill would prohibit abortions after 15 weeks of pregnancy, except in cases of rape, incest or danger to the physical health of the mother. The legislation introduced Tuesday is sending shockwaves through both parties with just weeks before voters go to the polls. Graham's own Republican colleagues did not immediately embrace his abortion ban bill, which has almost no chance of becoming law in the Democratic-held Congress.