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Scott Walker signs 20-week abortion ban

Just in time for his nascent presidential campaign, Wisconsin Gov. Scott Walker signed a bill Monday banning abortion at 20 weeks.

Annual March For Life Protests 1973 Roe v. Wade Ruling In Washington
Pro-life activists try to block pro-choice activists as the annual March for Life passes by in front of the U.S. Supreme Court Jan. 22, 2015 in Washington, D.C.Getty Images

Irin Carmon