Sen. Claire McCaskillClaire McCaskillSanders, Democrats introduce minimum wage bill Mnuchin: WH won't double-count economic growth Technology's role in human trafficking cannot be ignored MORE (D-Mo.), who's been traveling Washington this week with her daughter who's on spring break, thought about helping out Sen. Michael BennetMichael BennetSenators introduce lifetime lobbying ban for lawmakers Undocumented activist living in church gets stay of removal Overnight Regulation: Senate confirms SEC pick | House GOP passes 'comp time' bill | MORE (D-Colo.) at lunch.

"Lunch w/Lily in Sen dining [room]," McCaskill tweeted. "Sen. Bennett at large table surrounded by journalsts. Don't know [whether] to say congrats or try to save him."

Bennet, of course, is serving his first term in Congress after having been appointed to fill the Senate vacancy left by Interior Secretary Ken Salazar.