The following is from the Washington Post:
Former President George W. Bush is set to headline a luncheon fundraiser for the Jeb Bush presidential campaign in New York on Sept. 10, according to several people familiar with the event, part of an expanding role he is playing to help raise money for his younger brother's White House bid.
The 43rd president is scheduled to take part in a retreat for top donors in Houston in late October that will also feature their parents, former president George H.W. Bush and former first lady Barbara Bush. Other finance events are in the works, including discussions about a fundraiser in Arkansas in early October, according to people familiar with the plans.