Sen. Hillary Rodham Clinton (D-N.Y.) is back in the Senate Tuesday. Clinton will attend votes and the Senate Democrats caucus lunch, her office says.

This is Clinton's first appearance back in the Senate after ending her presidential bid and endorsing Barack ObamaBarack ObamaSpicer trends worldwide on Twitter after first WH briefing Trump inaugural TV ratings lower than Obama, Reagan: report Women's marches draw estimated 3M people across US MORE. Clinton will make her first joint campaign appearance with Obama Friday in Unity, New Hampshire.