Republicans are on track to control approximately 30 governor seats after the Nov. 2 election, according to the FiveThirtyEight gubernatorial forecasting model. And they are likely to do particularly well in the swing states of the Midwest…

Should the political momentum favor the Republicans this year, as seems likely, they have picked an auspicious time for it. This year’s gubernatorial elections are unusually important because of the role that some governors play in redistricting, the process of dividing the nation into 435 Congressional districts that occurs after each Census. Redistricting is often a contentious process, but it is especially so in states that are bound to lose seats in Congress. The result can resemble a game of musical chairs, with too many incumbents vying for fewer districts. Among the states expected to lose seats are Iowa, Michigan, Ohio and Pennsylvania – all states where the Republican nominee has emerged as a clear favorite.