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 ObamaBiden: Trump will not undo most climate change policies Donald Trump will be president — but a President Trump may not be what voters expected American astronaut John Glenn helped others rise all his life MORE. Clinton will make her first joint campaign appearance with Obama Friday in Unity, New Hampshire.