(CNN) The outcome of races in Kentucky, Mississippi and Virginia on Tuesday could shed light on how the country is leaning in the middle of an impeachment inquiry and as it heads into a presidential election year.

As the impeachment probe into President Donald Trump deepens in Washington, voters will head to the polls a year after Democrats took the US House, testing the political landscape.

Voters will decide the next governors of Kentucky and Mississippi, two solidly red states that voted for Trump in 2016. The President held a rally in Mississippi and will speak in Kentucky on Monday night to boost voter turnout for the two Republican candidates he endorsed.

All eyes are on Virginia, where Democrats are fighting to flip control of both chambers of the General Assembly. Democrats made major gains in the Virginia House of Delegates in 2017, but a contested recount ended in a lottery drawing that ultimately gave Republicans control of the state House of Delegates.

Here's a breakdown of what to watch on Tuesday:

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