It's safe to say that this 'case' is to deflect away from the Russian probe case.
https://www.salon.com/2017/12/21/jeff-sessions-wants-to-reopen-uranium-one-case-against-clinton-and-here-we-go-again/Jarrett Lyons
12.21.2017•1:07 PM
Attorney General Jeff Sessions is ordering the Justice Department to begin probing FBI agents for information about the long dormant Uranium One deal — a topic long cited by right-wing critics as proof of Bill and Hillary Clinton’s corruption.
The questioning is the next step for Sessions after he promised Congress in November that he would investigate the case to see if it’s worth assigning a special counsel, according to NBC News. The Obama-era deal allowed a Canadian based mining company, Uranium One, to be bought by a Russian firm in 2010. The company needed approval from nine agencies for the deal to go through. One of those agencies was the State Department, which Hillary Clinton was leading