New York Times: The Senate on Tuesday overwhelmingly approved an amendment to the Keystone XL pipeline bill that is aimed at improving energy efficiency in buildings a rare moment of bipartisan agreement in a tense debate that is nowhere near being settled. Lawmakers voted, 91 to 5, to add the popular energy-efficiency provision to a contentious bill that would approve construction of the Keystone pipeline. The amendment, offered by a Republican, Rob Portman of Ohio, and a Democrat, Jeanne Shaheen of New Hampshire,...