Horse trading on Capitol Hill has opened the way for Caroline Kennedy to be officially confirmed as America’s next ambassador to Canberra.

Republican Senator Ted Cruz will get a vote in January on his bill to slap sanctions on Russia’s Nord Stream 2 pipeline after Democrats agreed to a quid pro quo that will see  dozens of President Joe Biden’s stalled nominees for ambassadorial posts moved to the confirmation process.

In the agreement, reached on Saturday between Senate Majority Leader Chuck Schumer and Cruz, the Senate will vote before January 14 on Cruz’s bill to place sanctions on the Russia-to-Germany natural gas pipeline.

The deal cleared the way for the Senate’s approval of roughly three dozen ambassadors, including the daughter of former president John F. Kennedy to be the country’s next ambassador to Australia.

The White House last week listed Caroline Kennedy among eight recommended appointments for key diplomatic and agency postings, with the Senate required to confirm the nomination before the posting becomes official.

Under the agreement, Cruz’s bill, which would impose measures on the pipeline under previous mandates, will need 60 votes to pass. That is a hurdle in the 50-50 Senate, where bipartisanship is scarce.

Democrats this autumn had been rallying around a separate measure that would place sanctions on Nord Stream 2 and Russian officials only if Russia invaded Ukraine, but that legislation was dropped from annual defence policy legislation.

President Biden opposes Nord Stream 2, which is completed but awaiting approvals from Germany, because it would bypass Ukraine, depriving it of transit fees and potentially undermining its struggle against Russia.

The administration also believes the project would increase Russia’s leverage over Europe. Moscow says the project is purely commercial.

The White House and the State Department did not immediately respond to requests for comment.

In May, the Biden administration placed sanctions on Nord Stream 2 AG, the company that controls the pipeline.

But it immediately waived the sanctions, saying the project was already mostly built and as the administration sought to repair ties with ally Germany.

Germany is taking time to approve the pipeline. The country’s energy regulator said on Thursday no decision on whether to allow it to be commissioned is expected in the first half of 2022.

-with AAP