U.S. veterans, about 13% of the adult population and consisting mostly of older men, support Mitt Romney over Barack Obama for president by 58% to 34%, while nonveterans give Obama a four-percentage-point edge.You can expect Obama to push harder at the "I killed Bin Laden" line, especially with that movie coming up this Fall.
Some of his support can undoubtedly be traced to veterans who took civilian union jobs. Those guys tend to lean in the direction their union tells them to lean, and certainly some younger vets, especially minority members, will lean toward unicorns and rainbows too.
By the way, this same poll shows that for April and May Obama and Romney are basically tied at 46% among registered voters. That's not good news for an incumbent.