Andrea Shalal; Timothy Gardner; Steve Holland (19 de mayo de 2021). «U.S. waives sanctions on Nord Stream 2 as Biden seeks to mend Europe ties». Reuters(en inglés). Consultado el 16 de noviembre de 2021. «The Biden administration waived sanctions on the company behind Russia's Nord Stream 2 gas pipeline to Germany and its chief executive [...] State Department report sent to Congress concluded that Nord Stream 2 AG and its CEO, Matthias Warnig, an ally of Russian President Vladimir Putin, engaged in sanctionable activity. But Blinken immediately waived those sanctions».