President Barack Obama was greeted in Chicago by a familiar face _ his former chief of staff and current Chicago Mayor Rahm Emanuel.
Emanuel waited at the steps of Air Force One after it landed in Chicago on a sunny Wednesday evening. The mayor shook hands with some of his former White House colleagues as he waited for the president.
After Obama bounded down the stairs, he shook Emanuel's hand, then gave him a hug. They chatted as they walked across the tarmac to greet a crowd waiting nearby.
Emanuel left the White House last fall to run for mayor.