Republican presidential candidate Ben Carson speaks during Eagle Council XLIV, sponsored by the Eagle Forum, at the Marriott St. Louis Airport on Friday, Sept. 11, 2015.(Photo: Sid Hastings, AP)

It will be politics, politics and more politics on the Sunday talk shows this weekend.

Sure to be a central theme: the second Republican debate Wednesday night in Simi Valley, Calif., that will be hosted by CNN.

GOP presidential candidates New Jersey Gov. Chris Christie, Wisconsin Gov. Scott Walker, surgeon Ben Carson and Ohio Gov. John Kasich, along with Democratic candidate and Vermont Sen. Bernie Sanders, will blanket the morning airwaves Sunday.

NBC's Meet the Press will hear from Christie, who will discuss news from his campaign, including how the Bridgegate investigation returned to the headlines with the resignation of United Airlines' CEO this week.

• Meet the Press: Christie and Sanders will headline the show.  Host Chuck Todd will also talk to Rep. Tom Cole, R.-Okla., and former Sen. Jim DeMint, R-S.C., about calls by House Republicans for new leadership and the future of the party. Also included: National Journal columnist Ron Fournier, The New York Times' David Brooks, journalist Maria Hinojosa, whose work is featured on NPR and PBS, and Republican data and technology entrepreneur Sara Fagen.

• CNN's State of the Union: Walker and Republican National Committee Chairman Reince Priebus are featured. Anchor Jake Tapper will also talk with CNN chief political correspondent Dana Bash, radio show host Hugh Hewitt and CNN political commentators Ana Navarro and Van Jones.

Republican presidential candidate Wisconsin Gov. Scott Walker talks to potential voters during a campaign stop at Lori's Cafe, Friday, Sept. 4, 2015, in Midland, Texas. (Photo: Courtney Sacco, AP)

• Fox News Sunday: Kasich will be joined by host Chris Wallace and panelists Brit Hume of Fox, Julie Pace of The Associated Press, political analyst and columnist Juan Williams and syndicated columnist George Will.

• ABC's This Week: Carson will join panelists Robert Costa of The Washington Post, political strategist Maria Cardona, pollster Kristen Anderson and NPR's Steve Inskeep.

• WUSA9 Capital Download: USA TODAY's Susan Page and WUSA's Derek McGinty will interview Dick Cheney and Liz Cheney and Democratic strategist Stanley Greenberg. The political roundtable features Anne Gearan of The Washington Post and Reid Wilson of Morning Consult.

Former Vice President Dick Cheney and his daughter Liz Cheney during the West Virginia Chamber of Commerce annual meeting held at The Greenbrier Resort in White Sulphur Springs, W.Va., Thursday Sept. 3, 2015. (Photo: Rick Barbero, AP)

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