The Latest: Ellison to resign seat if chosen to lead DNC

Ellison says in a statement that he'll be "all-in to meet the challenge" of rebuilding the party after Democrats' devastating defeat in the 2016 elections.

Sen. Barbara Boxer has bid an emotional farewell to the chamber, recalling a career devoted to liberal causes like women's rights and the environment and her penchant for building odd-couple alliances with top Republicans like Jim Inhofe, a crusty conservative from Oklahoma.

With allies like House Democratic leader Nancy Pelosi watching, Boxer recalled accomplishments like after-school programs, setting aside California wilderness lands, and last year's highway bill.