Obama had the theme in his campaign of no lobbyists nor PACs and your quote shows he's walking the talk.
From the Politico:
Obama flashes irritation in press room
http://www.politico.com/news/stories/0109/17831.html
President Barack Obama made a surprise visit to the White House press corps Thursday night, but got agitated when he was faced with a substantive question.
Asked how he could reconcile a strict ban on lobbyists in his administration with a deputy defense secretary nominee who lobbied for Raytheon, Obama interrupted with a knowing smile on his face.
"Ahh, see," he said, "I came down here to visit. See this is what happens. I can't end up visiting with you guys and shaking hands if I'm going to get grilled every time I come down here."