It would require President Biden to impose sanctions and visa bans against top Russian military and intelligence officials engaged in planning or executing an invasion of Ukraine, and authorizes additional military assistance to Kyiv.

The amendment also calls for sanctions against Russian banks, state-owned enterprises, and the critical oil, gas and mineral sectors. It would ban primary and secondary sovereign debt transactions, which would deal a major blow to the Russian economy.

The intrigue: The amendment would sanction any company or corporate officer involved in planning or operating Nord Stream 2, a pending natural gas pipeline that will allow Russia to circumvent Ukraine and deliver energy directly to Europe via Germany.