I mean, they have already had some degree of success when it comes to hampering the completion of Nord Stream 2 by using the same tactics.

Nord Stream 2, which was originally scheduled to start delivering gas from Russia to Western Europe toward the end of 2019, is almost completed. Of a total of 2,360 kilometers (1,466 miles), 2,200 kilometers of the pipeline have been laid. But work came to a standstill in December, following a US sanctions law, which exerted enormous pressure on pipe-laying company Allseas, headquartered in Switzerland. The firm decided to withdraw its specialized ships from the project. German Left party MP Klaus Ernst, who heads the parliamentary Economic Committee, knows how much pressure had been exerted, citing letters that two US senators had sent to Allseas' CEO last December. The policymakers threatened to freeze all assets of Allseas in the US, stop all of its transactions through US banks and withdraw the visas of all employees, should the company not stop its involvement in Nord Stream 2.

And because apparently they felt they did not yet sufficiently sound like a criminal outfit...

The US argues that the pipeline will increase Europe's dependence on Russia, which both Berlin and Moscow dispute. The US proposes selling European's American natural gas shipped across the Atlantic as an alternative. The senators said the letter served as "formal legal notice," and demanded that Faehrhafen Sassnitz, which is owned by the town of Sassnitz and the state of Mecklenburg Western Pomerania, "cease activities" supporting the construction of the pipeline, or face "potentially fatal measures" that will cut the port's commercial and financial ties with the US.