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WATCH: Donnelly, Braun, Brenton face off in final Indiana Senate debate

Democratic Sen. Joe Donnelly, Republican Mike Braun and Libertarian Lucy Brenton will face off Tuesday in the final Indiana Senate debate before the 2018 midterm elections.

The debate will be moderated by the PBS NewsHour’s Amna Nawaz and hosted by Indianapolis’ PBS member station WFYI.

The debate will begin at 7 p.m. EST. Watch live in the player above.

Donnelly is one of 10 Democrats across the country trying to hold onto their seats in states President Donald Trump won in 2016.

The latest polling from the Indianapolis Business Journal shows Braun, a businessman and former state representative, and Donnelly, a one-term senator, in a virtual dead heat. A CBS/YouGov poll this week puts Braun up 3 percentage points, 46 percent to Donnelly’s 43.

Donnelly, an anti-abortion Democrat, has supported Trump just more than half of the time in the past two years, according to an analysis by FiveThirtyEight. He has backed many of the president’s larger proposals, including the White House’s immigration proposal in February, but has pushed back on ideas like the “skinny repeal” of the Affordable Care Act.

Braun has painted himself as a better ally of Trump, saying at a rally the president held in August that he would not be “somebody that says something when you’re in Indiana and does something differently when you’re in D.C.” Trump, who won 57 percent of the state’s vote in 2016, plans to make a stop in Indiana to campaign for Braun later this week.

Indiana, where agriculture is a key driver of the economy, has been called “the epicenter” of the battle over the Trump administration’s trade policies.

It’s been the subject of debates and also campaign ads, which have featured trade in “13,655 general election spots in Indiana, more than three times as often as the next closest Senate race,” Bloomberg notes.