Begich, like Landrieu, would have done better had Keystone come up for a vote and not been thwarted by the Reid agenda. And Schweizer supported it, and Mnt would have surely made up for the loss in NC.
Mnt and AK like their oil, and Dems can win.
Keystone would've made no difference for Begich, since he wasn't personally known as a strong advocate or supporter of the legislation. Landrieu tried to make the Keystone vote all about her, so for her had it passed it might've helped, but only at the margins: certainly not enough to make up a 12-point deficit.