Jones, who won a narrow race against embattled Republican Judge Roy Moore in Alabama's special election, was certified the victor of the race last week after Moore refused to concede to Jones. "You just got to thaw people out", he said, as he whisked from one Capitol Hill meeting to another with his wife, Louise, by his side.
Roby publicly broke with Trump prior to the 2016 election after audio emerged of the then-GOP presidential nominee bragging about groping women. "Thank you, Alabama. You've elected a man of incredible integrity, grit, and character".
But on most key issues, like health care, gay rights and gun control, Jones' views are in line with those of many other Democrats.
Biden campaigned for Jones in Alabama and recorded a robocall for his fellow Democrat in the final days of the campaign.
Walter Mondale, who was vice president during the Carter administration, was also there as Smith took the oath. He will be joined by family and friends for the ceremonial portion of the act for pictures with Vice President Mike Pence, who administers the oath.
Biden worked his way around the room, greeting warmly the roughly dozen Democrats in attendance as well as the five Republicans. "That is a nonstarter", Jones said. Al Franken. He resigned after a series of sexual harassment accusations.More news: Trump Administration Changes Tune, Says No Oil Drilling Off Florida Coast
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"Infrastructure is the flawless opportunity for both the parties to try to show to the American public that you can work together", Mr. Jones said.
A handful of other moderate Democrats from red states - like Joe Manchin of West Virginia, Heidi Heitkamp of North Dakota, Joe Donnelly of IN and Claire McCaskill of Missouri - could be likely allies of Jones. Al Franken after his resignation amid mounting sexual misconduct claims, and to former prosecutor Doug Jones, who won a special election last month in Alabama.
Jones' victory left Trump's Republicans even less room for defections from within their party as they pursue legislative initiatives such as an infrastructure plan, entitlement changes and scaling back Obama-era regulations on industry.
Jones kept that Alabama focus when hiring his senior staff.
The balance of power in the Senate will change from 52 Republicans and 48 Democrats-to 51 Republicans and 49 Democrats.