WASHINGTON - Democratic presidential candidate Joe Biden said Thursday that President Donald Trump has “tossed a stick of dynamite into a tinderbox” with the targeted killing of Iran’s top general in an airstrike at Baghdad’s international airport. The former vice president joined other Democratic White House hopefuls in criticizing Trump’s order, saying it could leave the U.S. “on the brink of a major conflict across the Middle East.” Vermont Sen. Bernie Sanders released a statement saying, “Trump’s dangerous escalation brings us closer to another disastrous war in the Middle East that could cost countless lives and trillions more dollars.” Democrats acknowledged the threat posed by Soleimani, with Massachusetts Sen. Elizabeth Warren calling him “a murderer, responsible for the deaths of thousands, including hundreds of Americans.” However, she added, Trump’s “reckless move escalates the situation with Iran and increases the likelihood of more deaths and new Middle East conflict.” Entrepreneur Andrew Yang tweeted: “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.” The attack also drew criticism from Democrats who aren’t running for president. House Speaker Nancy Pelosi said the administration conducted the airstrike without consultation of Congress or an authorization for use of military force against Iran. She said it “risks provoking further dangerous escalation of violence.” But Republicans on Capitol Hill stood behind Trump. South Carolina Sen. Lindsey Graham said: “I appreciate President Trump’s bold action against Iranian aggression. To the Iranian government: if you want more, you will get more.”