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 Hussein ObamaGOP rep: North Korea wants Iran-type nuclear deal Dems fear lasting damage from Clinton-Sanders fight Iran's president warns US will pay 'high cost' if Trump ditches nuclear deal MORE. Clinton will make her first joint campaign appearance with Obama Friday in Unity, New Hampshire.