The National Abortion Rights Action League (NARAL), which has supported Hillary Clinton throughout her political career, has endorsed Barack Obama for the presidency. An announcement is expected today.

An AP report, posted on a blog on the Obama site, says “NARAL’s political committee board was about evenly divided among Clinton and Obama supporters and that the decision to endorse was hard fought. Ultimately, the board voted unanimously Friday to support the Illinois senator.”

NARAL is the country’s leading abortion rights advocate.