Weaver signed a contract last month to lobby on behalf of the Tenam Corporation, a subsidiary of Rosatom, the Russian state-owned nuclear energy company.

Weaver will lobby Congress and the Trump administration on “sanctions or other restrictions in the area of atomic (nuclear) energy, trade or cooperation involving in any way the Russian Federation,” according to a disclosure filing.

The six-month contract is worth $350,000, plus expenses, with an option to extend if necessary. “Time is of the essence in the Agreement,” the contract reads, according to a copy filed with the Justice Department.

It’s not clear exactly what sanctions Weaver will be lobbying against.