Congressional Research Service: Now That Obama Uses Them, Signing Statements Are OK

In this new report (PDF), the Congressional Research Service gives its stamp of approval to law-altering presidential signing statements, emphasizing that both Obama and Bush used them, and blurring the distinction between how these presidents and their predecessors (Reagan, Bush I, and Clinton) used them. The CRS is "nonpartisan" in the sense of "bipartisan."  When both parties do it, that means it is not illegal.