Ice is thin beneath Heitkamp

The latest survey from Morning Consult / Politico suggests U.S. Senate races are tilting more conservative in North Dakota but not so much in Montana. Both have Democratic senators up for re-election Nov. 6: Heidi Heitkamp and Jon Tester.

What happens in those states and about 10 others would influence whether Republicans keep majority control of the Senate. South Dakota’s two Republicans, John Thune and Mike Rounds, aren’t up for election this fall.

The new survey found Heitkamp had 48 percent approval from North Dakota registered voters and 42 percent disapproval.

More significantly, 39 percent supported her re-election while 46 said it was time for a new person. She faces Republican U.S. Rep. Kevin Cramer. Heitkamp’s one-point win in 2012 was the Democrats’ only statewide victory in eight years.

In Montana, 51 percent of registered voters approved of Tester while 35 percent didn’t. On the re-elect question 44 percent supported him and 40 percent didn’t. Tester faces Republican State Auditor Matt Rosendale.