While we should be cautious of drawing conclusions from one poll, this cuts against the conventional wisdom that Donnelly is one of the more threatened D incumbents.
theblaze.com/news/2018/08/2…
But it's worth noting, that was a really different race. An open seat in a presidential year vs a D incumbent in a midterm with an unpopular R president.
That would mean each party is only defending 3 true toss-up seats. FL, MO and ND for Dems; AZ, NV and TN for GOP.