Why would you say that pushing for more gun control would be "High Risk" for Obama?
Risk for who? if he's reelected then he's done. 4 more years and then he's off to a multi million dollar speaking tour and another book deal.
Obama cares most of all about Obama. How would pushing for more gun control hurt him? He doesn't really care about the Dems in Congress as he does his own legacy and money.
Conservatives don't like him. Independents are walking away (hopefully in large numbers) and Libs are dissapointed in him. If he is going to cash in after leaving the White House then he needs to pump up his crazy Liberal credentials as much as possible and that won't be done by being a moderate.