Original sentence: Between 1993 and 2002, Obama served on the board the Woods Fund of Chicago, a philanthropic organization providing grants to Chicago's disadvantaged people and communities.In 1999 he was joined on the board by Bill Ayers, who had previously hosted a fundraiser for Obama in 1996.This association would later draw scrutiny during Obama's 2008 presidential campaign
Edited sentence: As his public profile has risen, some of Senator Obama's personal associations with controversial figures such as Rezko and unrepentant bomber Bill Ayers have been the subject of increased scrutiny