U.S. Rep. Chrissy Houlahan, D-Chester County, said in a post on X that although “Iran is a very bad actor on the world stage … the American people have not been given any evidence of an appreciable change, and Congress did not authorize any action.”

“President Trump, who promised no wars, is now again putting the lives of our men and women in uniform in grave danger all while trampling all over the Constitution,” she said.

“Trump promised Americans no new wars,” state Rep. Malcolm Kenyatta, D-Philadelphia, said in a post on X. “Every word out of his damn mouth is a lie.”

U.S. Rep. Mary Gay Scanlon, D-Delaware County, said in a post on X that Trump has “done nothing” to prove that the military action will make Americans safer.

“The people of Iran deserve peace and democracy, but the United States must support these goals without plunging our nation into another endless war,” Scanlon said.

U.S. Rep. Dwight Evans, D-Philadelphia, joined Kim in calling for a vote on the War Powers Resolution “to stop Trump’s reckless warmongering.”

“After claiming last June he ‘completely and totally obliterated’ Iran’s nuclear program, President Trump launched yet another illegal, ill-conceived attack on Iran,” Evans said in a statement. “These escalations only put American lives, at home and abroad, at greater risk and drag our country towards another endless war.”

In a post on X, U.S. Rep. Madeleine Dean, D-Montgomery County, called the military operation in Iran the result of “the erratic decision-making of an irrational President.”

“Americans do not want war,” Dean said. “Americans do not want to send their sons and daughters into foreign conflict. Americans do not want to live in fear of an ever-escalating, volatile situation.”

In a statement, U.S. Sen. Chris Coons, D-Del., lambasted the military action as “a reckless new war of choice with no clear strategy and no clear end point.”

“‪This is not how a democracy goes to war,” Coons said. “Less than five years after the end of the longest war in American history, the United States is once again staring down another open-ended conflict with a hostile country in the Middle East that could cost the lives of many American service members.‬”

U.S. Sen. Lisa Blunt Rochester, D-Del., said in a statement that Trump’s “reckless actions demonstrate a troubling lack of clear foreign policy strategy” and also called for a vote on the War Powers Resolution.

“He has inched us closer to war on a whim and the last thing we need is another open-ended war in the Middle East,” she said. “Escalation without a clear strategy risks putting Americans in harm’s way and sets a dangerous precedent, signaling to adversaries like China and Russia that there are no consequences to aggression.”

U.S. Sen. Dave McCormick, R-Pa., said in a post on X that he is praying for “our brave troops and our steadfast allies who stand with us during this challenging and noble mission.”

“The president has given the ayatollahs a chance for a deal, and they have rejected a path to peace and prosperity,” McCormick said.

U.S. Sen. John Fetterman, D-Pa., joined Republicans in praising the operations.

“President Trump has been willing to do what’s right and necessary to produce real peace in the region. God bless the United States, our great military, and Israel,” he said in a post on X.

Pennsylvania Treasurer and GOP gubernatorial candidate Stacy Garrity said in a post on X that she “will always stand with the brave men and women of our military who serve with strength, discipline, and honor to protect our nation.”

This story may be updated.

WHYY News reporter Phil Davis contributed to this story.