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The Democratic presidential candidates have split into an anti-war camp, led by Sen. Bernie Sanders, and a set of more nuanced responses to the killing of a key Iranian official, a rare and sharp contrast inside the party that begins to choose its nominee in a month. All the leading Democrats, in varying degrees, criticized President Donald Trump for the potential his drone strike has to destabilize the Middle East. But while Sen. Elizabeth Warren made the point of calling Qassem Soleimani a “murderer,” former mayor Mike Bloomberg called him "a murderer with the blood of Americans on his hands,” and former vice president Joe Biden began his statement denouncing Soleimani’s “crimes against American troops and thousands of innocents,” Sanders took a different tone, one drawn from a wing of the party that has opposed American wars since Vietnam. “Trump's dangerous escalation brings us closer to another disastrous war in the Middle East that could cost countless lives and trillions more dollars,” Sanders said in a statement, after noting his opposition to the Iraq war and without mentioning Soleimani by name. “Trump promised to end endless wars, but this action puts us on the path to another one.” The campaign’s press statement referred to the attack as an “assassination.” In tweets on Friday morning, Warren also said Trump "assassinated" a senior Iranian official. Rep. Tulsi Gabbard, who has cast herself as the party’s leading anti-war voice, spoke about the strike on Fox News' Fox & Friends on Friday morning, calling it "very clearly an act of war by this president, without any kind of authorization or declaration of war from Congress, clearly violating the Constitution." Andrew Yang, like Sanders, immediately denounced the attack and later said he would as president “restore the historical balance between Congress and the Executive branch concerning military action.”

War with Iran is the last thing we need and is not the will of the American people. We should be acting to deescalate tensions and protect our people in the region.

Most of the Democratic elected officials running for president took more cautious and traditional stances, beginning with condemnations of Soleimani, who has directed Iranian proxy and terror operations around the world for decades, and who the US blames for a recent attack on its embassy in Baghdad by a militia allied with Iran. They also warned that Trump could be making a mistake.

“This reckless move escalates the situation with Iran and increases the likelihood of more deaths and new Middle East conflict. Our priority must be to avoid another costly war,” Warren tweeted.

Soleimani was a murderer, responsible for the deaths of thousands, including hundreds of Americans. But this reckless move escalates the situation with Iran and increases the likelihood of more deaths and new Middle East conflict. Our priority must be to avoid another costly war.