Selzer is a highly respected pollster with a history of accuracy, so this is a positive sign. A couple of days ago a poll conducted by a university in Kansas showed Harris down by only 5 in KS, whereas in the last 2 elections, trump carried the state by 14 and 21 points, so that's a big improvement there. She also has a higher than expected lead in the polls of Nebraska 2. So all these polls of midwest red states taken together probably mean something about how this region of the country is moving.