WASHINGTON — John McCain’s close friend and ally from South Carolina, fellow Republican Sen. Lindsey Graham, will be on hand in Chicago Monday as McCain meets with his former rival, President-elect Barack Obama. Also attending will be Obama’s new chief of staff, Rep. Rahm Emanuel, D-Ill. In an interview Friday, Graham said Emanuel asked for the meeting about a week ago. “We were talking about some things that we could work together on,” Graham said.