Yesterday was slightly heavy on the breaking news front, so this (not unexpected) development went largely overlooked.  President Obama held a photo-op to highlight his decision to veto the bipartisan National Defense Authorization Act, which appropriates $612 billion in defense spending -- a figure that matches Obama's military budget request. Among other things, the legislation pays the troops and gives them a raise.  It sailed through the Senate with 70 votes, attracting dozens of Democratic votes at both ends of Capitol Hill.  But in an escalation of partisan politics, Obama has refused to sign the measure into law in an effort to coerce Republicans into...