The Trump administration is facing a complex challenge as it navigates escalating sanctions against Russia while seeking to preserve the U.S. dollar’s dominant role in the global financial system. A new sanctions bill, originally proposed by the late Senator Lindsey Graham, aims to impose mandatory penalties on Russia and its allies, and could expand to include tariffs on buyers of Russian energy. The White House has indicated that the scope of these sanctions might also extend to Iran and Hezbollah, with bipartisan support signaling the bill’s potential passage this summer.

This legislative push comes amid broader concerns within the administration about the possible erosion of the dollar’s status as the primary global reserve currency. U.S. sanctions rely heavily on the dollar’s centrality in international trade, by effectively cutting off targeted entities from Western financial networks. However, critics and officials alike worry that extensive use of sanctions could prompt some nations to seek alternatives, such as China’s renminbi or cryptocurrencies, to circumvent U.S. restrictions.

The administration is attempting to balance the use of financial sanctions as a diplomatic tool with risks to the dollar’s supremacy. Treasury Secretary Scott Bessent emphasized in a May speech that sanctions must be “aggressive and targeted, with defined timelines” to be effective, warning that prolonged measures without clear outcomes can generate unpredictable consequences.

In a recent trend, the U.S. has quietly removed obsolete or low-threat targets from its sanctions lists, reflecting an effort to refine its approach. Steps have included easing sanctions on Venezuela and temporarily allowing sales of Russian and Iranian oil under exemptions. Additionally, President Trump has advocated lifting sanctions on Turkey to facilitate a fighter jet sale. The Treasury Department has also launched a “reconsideration portal” to streamline requests for delisting, anticipating heightened lobbying as businesses seek relief from sanctions that heavily hamper operations.

Research indicates that in heavily sanctioned countries such as Russia, Belarus, Kyrgyzstan, and Myanmar, banks have shifted toward the renminbi to lessen dependence on the dollar. Nonetheless, a broader move away from the dollar remains limited; International Monetary Fund data shows that the U.S. currency still accounts for roughly 57% of global foreign exchange reserves.

To counterbalance these pressures, the administration is considering expanding dollar swap lines with more countries, a move designed to ensure U.S. allies have ample access to dollars and reduce incentives to transact in other currencies. Treasury officials have also underscored the importance of maintaining dollar invoice systems in exports from sanctioned nations such as Venezuela and Iran, and anticipate Russia’s return to the dollar system once the conflict in Ukraine concludes.

Despite the ongoing recalibration of sanctions policies, the Trump administration continues to utilize financial penalties as a key diplomatic instrument. For example, new sanctions imposed last week target Iran’s weapons procurement and shipping networks controlled by the Islamic Revolutionary Guards Corps, following a breakdown in the cease-fire.

The administration has also sought to retain presidential flexibility over sanctions enforcement, pushing for provisions that would allow the president to suspend or waive sanctions to support diplomatic negotiations. However, some experts caution that without clear alternatives to reduce reliance on non-dollar payment systems, efforts to curb sanctions use may have limited impact on the longer-term dynamics of the global currency order.

Overall, U.S. policymakers face a delicate balancing act: leveraging sanctions to achieve foreign policy goals while safeguarding the dollar’s foundational role in international finance.