By Jim EllisOct. 25, 2018 — With only four 2018 Indiana Senate polls conducted before September, this campaign was the least surveyed toss-up race in the country, but that is changing. We now see a plethora of polling being released in October. In what appeared to be a contest trending toward Sen. Joe Donnelly (D) the results now appear to be turning.
In mid to late September, Ipsos Reuters (Sept. 12-20; 1,181 Indiana voters; online) and Fox News (Sept. 29-Oct. 2; 695 likely Indiana voters) found Sen. Donnelly leading former state representative and international businessman Mike Braun (R), 46-43 and 43-41 percent, respectively.
An early October survey from American Viewpoint (Oct. 7-10; 800 likely Indiana voters) reversed the trend, posting Braun to a 44-40 percent lead. After that, a series of three surveys from a trio of independent polling firms, all conducted between October 12-16, found Sen. Donnelly regaining the lead.
In consecutive order, Gravis Marketing (377 likely Indiana voters), Survey USA (816 likely Indiana voters), and Vox Populi (783 likely Indiana voters) posted Donnelly to leads of four (44-40 percent), one (41-40 percent), and eight (44-36 percent) percentage points, respectively.
The two latest surveys, again from American Viewpoint (Oct. 14-17; 800 likely Indiana voters) and a new one from Mason Strategies (Oct. 15-20; 600 likely Indiana voters), find Braun seesawing back into the lead. American Viewpoint yields the Republican a 44-40 percent advantage, while Mason Strategies sees Braun up 47-43 percent.