“Too funny. First power meeting with E. Warren and D. Fischer? In the Senators-only women’s bathroom. Gonna need a bigger bathroom.” — Sen. Claire McCaskill, D-Mo., is making friends left and right in the close quarters that are the female-friendly Senate facilities.

Sens.-elect Elizabeth Warren, D-Mass., and Deb Fischer, R-Neb., are just two of the five new female senators joining the 113th Congress, a roster that includes Sens.-elect Heidi Heitkamp, D-N.D., Tammy Baldwin, D-Mo., and Mazie Hirono, D-Hawaii. The group will raise the number of female lawmakers in the Senate to 20 from the current 17 in the next session.