A little more data has come in from Montana, and now Republican Matt Rosendale has taken the lead over Democratic Sen. Jon Tester, 49 percent to 48 percent. It's still difficult to say how this will shake out. Many of the blue counties in the state have a lot of outstanding vote, including Missoula. But there are some small GOP-leaning counties that have not reported anything yet. Note that Tester has never won an outright majority in his two Senate win (49.2 percent in 2006 and 48.6 percent in 2012), so if he does eke out a win, this would be par for the course.