Climate change showdown in the Senate? More:

The president is threatening to veto a resolution from Sen. Lisa Murkowski (R-Alaska) that would ban the Environmental Protection Agency (EPA) from regulating carbon emissions.

But if the president were forced to use his veto to prevent legislation emerging from a Congress in which his own party enjoys substantial majorities, it would be a humiliation for him and for Democrats on Capitol Hill.

It would be great if Senate Republicans could get this done, along with a few sensible Democrats.