Democratic Senator Tim Kaine introduced new legislation on June 16 aimed at limiting the power to use military force against Iran without congressional approval. This move comes as Trump hinted that the U.S. might intervene in the conflict between Israel and Iran, amid escalating military confrontations between the two countries that have raised serious concerns in the international community about the outbreak of a full-scale war in the region.

Senator Kaine has long been committed to restoring Congress's constitutional power in military decision-making, having previously proposed a similar measure in 2020 that did not pass. This resolution explicitly emphasizes that, according to the Constitution, Congress is the only institution with the power to declare war, and any hostile actions against Iran must receive explicit authorization. Kaine stated that going to war with Iran does not align with the national security interests of the United States and expressed concern that the U.S. could be drawn into an endless regional conflict.

Under current U.S. law, such resolutions have priority and need to be discussed and voted on immediately by the Senate. Recently, the Israeli army launched attacks on Iran's nuclear facilities and missile bases, followed by Iran's missile retaliation of several Israeli cities, including Tel Aviv and Haifa, resulting in casualties. On the 16th, Israeli Prime Minister Benjamin Netanyahu declared that the Israeli Air Force had taken control of Tehran's airspace and was conducting military operations to eliminate the Iranian nuclear threat and missile threat.

As Israel and Iran continue to attack each other, killing and injuring civilians, global leaders are increasingly concerned that the situation could trigger a larger regional war. Trump applauded Israel's attack, denying U.S. involvement in Iran's alleged actions while warning Iran against retaliation against U.S. targets. He expressed the hope that a solution would be resolved through diplomatic negotiations, but at the same time hinted that sometimes conflicts between countries may be inevitable.