Wisconsin debate triple-header for governor, Senate and Paul Ryan's seat plays opposite the Brewers Friday night

Bill Glauber , Molly Beck | Milwaukee Journal Sentinel

It's the biggest debate night of the year in Wisconsin politics.

There's just one problem: Friday night's debate triple-header involving clashes for governor, U.S. Senate and the 1st Congressional District — that's the seat held by retiring House Speaker Paul Ryan — goes up against Game 6 of the NLCS between the Milwaukee Brewers and Los Angeles Dodgers.

The first debate begins at 7 p.m. and the first pitch is at 7:39 p.m.

And there's more: The Milwaukee Bucks tip-off at 7:30 p.m. in their home opener at Fiserv Forum.

But for political enthusiasts, really interested voters and TV viewers flipping channels or hitting the internet between innings, the debates will offer a prime-time chance to view the candidates in three of the state's prime political races.

Here's what to look for.

The lineup

7 to 8 p.m. U.S. Senate. Democratic incumbent Sen. Tammy Baldwin vs. Republican challenger Leah Vukmir, from Marquette University Law School. Mike Gousha will moderate and WISN-TV will televise.

7:30 to 8:30 p.m. 1st Congressional District. Republican Bryan Steil vs. Democrat Randy Bryce at Oak Creek City Hall. Mary Spicuzza of the Milwaukee Journal Sentinel and Steve Walters of WisconsinEye will moderate and the debate will be live streamed at wiseye.org/live.

8 to 9 p.m. Governor's race. Republican incumbent Scott Walker versus Democratic challenger Tony Evers at the Wisconsin Broadcasters Association event in Madison moderated by Jill Geisler and broadcast statewide.

U.S. Senate

Baldwin and Vukmir have already met in two televised debates in Milwaukee and Wausau.

There have been key battles over health care, especially over how to insure those who have pre-existing medical conditions. Baldwin has charged that Vukmir's push to repeal and replace the Affordable Care Act threatens those who have pre-existing conditions. Vukmir said she would "fall in front of a truck" rather than let those with pre-existing conditions go without coverage.

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They've also aired their opposing views on abortion, climate change, taxes and immigration. And they've gone back-and-forth over the past opioid scandal at the Tomah Veterans Affairs Medical Center.

But foreign policy and national security have not been discussed in the debates. Expect to see a few questions in that area, especially in the wake of the disappearance of Saudi dissident Jamal Khashoggi.

John Rogers, a former deputy assistant Secretary of Defense under Les Aspin, has suggested several topics to discuss, including NATO, the U.S. military presence in Afghanistan and a potential artificial intelligence gap with China.

1st Congressional District

Steil, a Janesville attorney and member of the University of Wisconsin Board of Regents, is running as Ryan's political heir. Bryce, an ironworker from Caledonia, is trying to take his brand of blue-collar populism to Washington, D.C.

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This is their first debate. A second one is set for Oct. 23 at Carthage College in Kenosha and a final debate is Oct. 29 in Janesville.

Steil and Bryce are polar opposites when it comes to policy positions and personalities, so voters can expect to see sharp differences when it comes to issues like immigration, health care, gun violence and Social Security.

Governor's race

Tied in the polls, Walker and Evers will face voters together for the first time,

Walker, who is seeking a third term, will seek to paint Evers as a foil to his hard line against raising the tax burden on Wisconsinites and someone who will make the state less safe by reducing the prison population.

But Evers, the state's schools chief, will likely tell voters that Walker hasn't put a priority on public schools, affordable health care or roads in the last eight years and doesn't deserve another four.

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A number of national polls have shown Evers ahead of Walker, but the Marquette University Law School poll has shown the two tied twice and Evers ahead once.

The pair will have one more debate, Oct. 26 at 6 p.m. at the University of Wisconsin-Milwaukee and broadcast by WTMJ-TV and WUWM-FM (89.7). Debate partners include the Milwaukee Journal Sentinel and USA TODAY-Network Wisconsin.

Mary Spicuzza of the Journal Sentinel contributed to this report.