The US Senate included in the military budget for 2020 the sanctions not only against the participants of the North Stream-2 project bypassing Ukraine, but also against the Turkish Stream gas pipeline. The sea section of this project has already been built, under threat of its continuation in Serbia and Bulgaria.

Sanctions against the “Turkish stream” are in the Russian Countering section along with the ban on the recognition of Crimea by Russian, the allocation of $ 300 million for defense needs and the ban on the supply of Turkey F-35 fighters due to the purchase of Russian S-400 air defense systems.
Since the US military budget is required to accept, sanctions will be held with it.
Read also sanctions against Northern Stream-2 are included in the US military budget

"Turkish stream." Map from the site "Gazprom"