(CNN) Much of the attention on Election Night will be on the battle for control in Congress, but there will also be 36 governors' races across the country.

Republicans currently control 26 of these seats compared to Democrats' nine and one independent. If the polling is correct, there will be a major reversal of fortune.

Democrats look favored to win many governorships they don't currently hold. Indeed, the best estimate is that Republicans will end up with just 19 of the governorships up for grabs on Tuesday to the Democrats' 17. Perhaps more importantly, Democrats are in a position to control the top position in potentially nine of the 10 most populated states.

Now you may be wondering why governors' races matter. Let me give you one reason.

In a number of states, the strong Democratic performance in governor's races will help them when it comes to the next round of redistricting after the 2020 Census. In the last decade, Republican governors helped draw lines that were more favorable to Republicans. The result was that more Republicans were able to win House races that they might not otherwise been able to.

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