Nord Stream info bun.

Basically a TL;DR

Russians not only know that the USA sabotaged the two natural gas pipelines to Germany, but they know which US Navy ship was responsible: USS Kearsarge.

It was 30 km from Nord Stream-1 gas pipeline and 50 km from Nord Stream-2 gas pipeline.

The damage was caused to both pipelines nearly at the same time.

Biden removed the Sanctions that Trump put in place

Plus they know USA threatened the pipeline:

Victoria Nuland threat: “If Russia invades Ukraine, one way or another, Nord Stream 2 will not move forward.”

And Joe Biden threat, said that Nord Stream would be finished if Russia invaded Ukraine…

Also, The American's CIA warned of Nord Stream attack.

Russia requests UN Security Council meeting over Nord Stream pipeline damage

Finally; Trump, who knows this was not an accident has offered to lead group for talks