Biden traveled to a gun policy conference in Connecticut last month in the aftermath of December's Newtown school shootings, to underscore the administration's push for tougher laws as the state considers a broad set of gun control bills.
And especially if the Democratic nominee were Hillary Clinton we're told that he would really hurt her, that you would have another New Yorker, you would have a similar issue set - gun control, immigration, global warming - not the sort of issues that you would have on the Republican side.