(CNN) - When a set of recommendations to reduce gun violence hits President Barack Obama's desk on Tuesday, it will trigger a new stage in a decisive political battle consuming Washington. And it will show just how much America may have changed in the wake of last month's massacre in Newtown, Connecticut.
The proposals from a White House task force may include some with broad support on issues involving mental health. But one of the most intense flashpoints is already known: The group, overseen by Vice President Joe Biden, is expected to support reinstating an assault weapons ban.