With the midterm elections a few weeks away, Senator Lindsey Graham, Republican of South Carolina, forwarded a plan to save his party from the growing backlash over abortion.\n\nBut the proposal \u2014 a federal ban on almost all terminations after 15 weeks \u2014 has served mostly to expose the division among Republicans about the issue.\n\nGuest: Lisa Lerer, a national political correspondent for The New York Times.