Sen. Claire McCaskillClaire Conner McCaskillNSA spying program overcomes key Senate hurdle Senate campaign fundraising reports roll in Dems search for winning playbook 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 Farrand BennetDurbin: Senators to release immigration bill Wednesday Trump's 's---hole' controversy shows no sign of easing Dem senator: 'No question' Trump's 's---hole countries' comment is racist 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.