This claim is extremely false. There has been no evidence that the US had any involvement in the sabotage of the Nord Stream Pipeline.
Also, after some background research on the news website "The Gateway Pundit" Wikipedia claims that this website "is an American far-right fake news website. The website is known for publishing falsehoods, hoaxes, and conspiracy theories." Twitter has even suspended Jim Hoft's (founder of TGP and writer of the article) account.
https://en.wikipedia.org/wiki/The_Gateway_Pundit
Furthermore, in transcripts from the US government hearing titled "the state of intellectual freedom in America," it was stated that "Jim Hoft of Gateway Pundit website, in an attempt to discredit the courageous efforts of the survivors of the horrific shooting at Parkland High School in Florida in support of reasonable gun regulations, helped to propagate the false story that these shooting survivors were not real victims but were instead trained crisis actors. Mr. Hoft's association with the crisis actor conspiracy theory was too much even for CPAC, which describes itself as the birthplace of conservativism.''
https://www.govinfo.gov/content/pkg/CHRG-115hhrg33122/html/CHRG-115hhrg33122.htm
In short, I would take any claim on the website "The Gateway Pundit" and any article written by Jim Hoft with a grain of salt. There have been long scores of lawsuits against the website and Jim Hoft for defamation/libel, and even Google has even demonetized the platform for making so many false claims and spreading fake news.