New Sen. Heidi HeitkampMary (Heidi) Kathryn HeitkampThe Hill's 12:30 Report Avalanche of Democratic senators say Franken should resign Senate panel moves forward with bill to roll back Dodd-Frank MORE (D-N.D.) tweeted a photo of her first steps into her new Senate office. Sen. Jeff FlakeJeffrey (Jeff) Lane FlakeGOP strategist donates to Alabama Democrat Sasse: RNC help for Roy Moore 'doesn't make any sense' Sasse calls RNC decision to resume support for Moore 'bad' and 'sad' MORE (R-Ariz.) tweeted that not only is it his first day as a senator, his daughter got engaged at the Capitol the day before.

Returning members were excited, too. Some, such as Reps. Ileana Ros-Lehtinen (R-Fla.) and Bruce BraleyBruce Lowell BraleyOPINION | Tax reform, not Trump-McConnell feuds, will make 2018 a win for GOP Ten years later, House Dems reunite and look forward Trump: Ernst wanted 'more seasoning' before entertaining VP offer MORE (D-Iowa), shared a first look at their new gear for the 113th Congress, such as ID badges and congressional pins officially marking them as members.

Others welcomed back Sen. Mark KirkMark KirkHigh stakes as Trump heads to Hill Five things to watch for at Trump-Senate GOP meeting Giffords, Scalise highlight party differences on guns MORE (R-Ill.), who spent all of 2012 recovering from a stroke. Kirk was able to walk up the outside steps of the Capitol, with some help from Vice President Biden and Sen. Joe ManchinJoseph (Joe) ManchinTrump rips Dems a day ahead of key White House meeting Senate panel moves forward with bill to roll back Dodd-Frank Wealthy outsiders threaten to shake up GOP Senate primaries MORE (D-W.Va.).

Several of Kirk’s colleagues in the Senate, as well as members of the Illinois delegation, welcomed him back. Kirk also tweeted a thank-you “for all the support.”

Sen. Lindsey GrahamLindsey Olin GrahamGOP and Dems bitterly divided by immigration We are running out of time to protect Dreamers US trade deficit rises on record imports from China MORE (R-S.C.) was thinking of the new senator from South Carolina, former Rep. Tim ScottTimothy (Tim) Eugene ScottMcConnell names Senate GOP tax conferees GOP senator: Trump shouldn't pardon Flynn Trump should fill CFPB vacancy with Export-Import chief MORE (R), who was selected by South Carolina Gov. Nikki Haley (R) to fill former Sen. Jim DeMint’s (R-S.C.) seat.

And many other members thanked their constituents and expressed hope for a more bipartisan Congress this session.