Does gerrymandering cause polarization?
Political polarization has been rising in the US for decades, but voting experts say gerrymandering is not the primary cause of this phenomenon.
03:34 - Source: CNN
Congress votes and recent decisions 11 videos
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Does gerrymandering cause polarization?
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Ethics vote collapses under weight of backlash
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BEDMINSTER TOWNSHIP, NJ - NOVEMBER 20:  President-elect Donald Trump stands outside the clubhouse following his meeting with Ari Emanuel, co-CEO of William Morris Endeavor, at Trump International Golf Club, November 20, 2016 in Bedminster Township, New Jersey. Trump and his transition team are in the process of filling cabinet and other high level positions for the new administration.
Trump: Congress should not weaken ethics group
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Rep. Seth Moulton (D)
Congressman: No way Congress is too ethical
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WASHINGTON, DC - JUNE 15:  Anti-gun activists march to the U.S. Capitol as Senator Chris Murphy (D-CT) wages a fillibuster on the Senate floor in order to force a vote on gun control on June 15, 2016 in Washington, DC.  Murphy wants the Senate to vote on a measure banning anyone on the no-fly list from purchasing a weapon. (Photo by Pete Marovich/Getty Images)
House GOP guts ethics panel
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Reps. Jack Bergman and Val Butler Demings
Meet two of Congress's freshman class presidents
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Sen. Chuck Schumer smiles as Senate Minority Leader Harry Reid talks to the media on Capitol Hill on September 27, 2016.
Democrats target Trump nominees
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US President-elect Donald Trump waves to the media after meeting with David Rubenstein, co-founder of Carlyle Group December 28, 2016 at Mar-a-Lago in Palm Beach, Florida.
Reporters discuss Trump's administration
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President-elect Donald Trump speaks at the USA Thank You Tour 2016 at the Wisconsin State Fair Exposition Center December 13, 2016 in West Allis, Wisconsin.
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TOPSHOT - Republican Presidential hopeful Donald Trump speaks during a rally March 13, 2016 in West Chester, Ohio. / AFP / Brendan Smialowski        (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
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12/7/16, The White House, Washington, D.C.

President Barack Obama sits with David Axelrod for his podcast "The Axel Files" in the Roosevelt Room of the White House in Washington, D.C. on Dec. 7, 2016. 

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Obama: Dems need to go beyond policy points
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