The House Foreign Affairs Committee slammed President Trump Donald John TrumpBarr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' Military leaders asked about using heat ray on protesters outside White House: report Powell warns failure to reach COVID-19 deal could 'scar and damage' economy MORE on Sunday after Trump appeared to write that his tweets served as sufficient notification to Congress in the event of a potential military strike against Iran.

The Democratic-led panel, in a tweet mirroring the language Trump himself used in his message, warned the president that he was not a "dictator" and that Congress has the power to authorize acts of war.

"This Media Post will serve as a reminder that war powers reside in the Congress under the United States Constitution. And that you should read the War Powers Act. And that you’re not a dictator," the committee tweeted.

This Media Post will serve as a reminder that war powers reside in the Congress under the United States Constitution. And that you should read the War Powers Act. And that you’re not a dictator. https://t.co/VTroMegWv0 — House Foreign Affairs Committee (@HouseForeign) January 5, 2020

Earlier on Sunday, Trump tweeted a warning that the U.S. would respond to any aggression from Iran with a potentially "disproportionate" response. He also appeared to suggest that his tweets sufficed as notification to Congress before such a move.

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"These Media Posts will serve as notification to the United States Congress that should Iran strike any U.S. person or target, the United States will quickly & fully strike back, & perhaps in a disproportionate manner. Such legal notice is not required, but is given nevertheless!" Trump tweeted.

House Foreign Affairs Committee Chairman Eliot Engel Eliot Lance EngelThe Hill's Morning Report - Sponsored by The Air Line Pilots Association - Pence lauds Harris as 'experienced debater'; Trump, Biden diverge over debate prep Coons beats back progressive Senate primary challenger in Delaware Overnight Defense: Trump hosts Israel, UAE, Bahrain for historic signing l Air Force reveals it secretly built and flew new fighter jet l Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' MORE (D-N.Y.) has vowed to oppose any military action by the Trump administration not sanctioned ahead of time by Congress and has released a statement vowing his personal vote against war with Iran should it be put up to a vote in the House.

"The American people don't want war with Iran, and neither do I," Engel tweeted Saturday. "We need to send a clear message to the White House: don’t plunge this country into an ill-conceived war against Iran."

The American people don't want war with Iran, and neither do I.



We need to send a clear message to the White House: don’t plunge this country into an ill-conceived war against Iran.



As chair of @HouseForeign, I'll do everything I can to prevent one. #NoWarWithIran pic.twitter.com/uNo6kx0cn7 — Eliot Engel (@RepEliotEngel) January 5, 2020

The exchange comes after Trump authorized an airstrike that killed Gen. Qassem Soleimani, the head of Iran's Quds Force. The move, which was unexpected, shook the foreign policy establishment in Washington and sparked new fears of a war breaking out between Washington and Tehran.