SCOTUS & the Census w/ Meyerson; Stacey Abrams on Leading; Plus: Joan Walsh on Gillibrand

New York v. US Dep't of Commerce, the challenge to adding a citizenship question to the 2020 census, was heard on Tuesday -- would such a question be unconstitutional? Harold Meyerson comments --Also, Joe Biden announced his campaign for the presidency--he says he can win back the older white working class men in PA, MI and WI that Hillary lost. Next up, Stacey Abrams talks about her life and shares advice from her book, 'Lead from the Outside: How to Build Your Future and Make Real Change'. Also: Kirsten Gillibrand: how authentic has her lean to the left been? Joan Walsh comments.