• Senate Majority Leader John Thune states that if the U.S. takes military action against Iran, the goal should be regime change, reflecting a hardline Republican position.
  • The U.S. has conducted airstrikes targeting Iran's nuclear sites, with Thune affirming support and noting that "the mullahs' misguided pursuit of nuclear weapons must be stopped."
  • Republican Senator Lindsey Graham characterizes the Iranian regime as at its "weakest point since 1979," citing military degradation, domestic protests, and economic deterioration.

A Hardline Stance Emerges

In a significant shift in U.S. foreign policy rhetoric, Senate Majority Leader John Thune has publicly declared that any military action against Iran should aim for regime change, according to sources familiar with his recent statements. This position, emerging amid ongoing airstrikes targeting Iran's nuclear facilities, signals a deepening hawkish stance within Republican leadership as tensions escalate in the Middle East.

Thune's comments come as the administration pursues what he describes as a policy of "peace through strength," preparing contingencies to prevent Iran from acquiring nuclear capability while addressing its conventional military threats to regional allies. Efforts to restructure diplomatic engagements have hit a snag, with the administration reportedly maintaining "two lines in the water: a diplomatic line and a military line," as noted by Senator Lindsey Graham. Without a deal, analysts suggest the risk of broader conflict could intensify.

Regime Under Pressure

The Iranian leadership faces mounting challenges, with Graham asserting that the regime is at its "weakest point since 1979" due to several factors. Military degradation has resulted from Israeli and U.S. operations following the October 7 attacks, while widespread domestic protests have seen millions of Iranians take to the streets demanding change. Economic deterioration and lack of growth prospects under current leadership further compound the instability.

Graham explicitly advocates for regime change, stating that the Iranian people themselves are "demanding regime change" and framing this moment as a pivotal opportunity for regional transformation. President Trump has echoed this sentiment, publicly encouraging protesters with the message "Keep protesting. Help is on the way," signaling support for internal opposition movements. Attempts to reach Iranian officials for comment were unsuccessful, according to people familiar with the matter.

Congressional Dynamics and Regional Implications

Republican leadership appears divided on the approach, with Thune emphasizing that "consultation" with Congress "needs to happen" regarding Iran policy, though he has not detailed specific military plans. The full scope of the administration's strategy remains unclear, pending further public statements and potential congressional authorization processes for expanded action.

If the Iranian regime were to fall, Republican insiders anticipate significant geopolitical shifts, including normalization between Saudi Arabia and Israel, weakening of terrorist proxy networks like Hezbollah and the Houthis, and expansion of the Abraham Accords. Conversely, they warn that if the current leadership consolidates power despite U.S. military actions, regional instability could persist for decades, affecting global energy markets and security alliances.

Correction: An earlier version of this article misstated the timing of certain military operations; updates confirm ongoing airstrikes but specifics remain classified.