While senior officials argue the drone strike was warranted to prevent future attacks, some in the administration remain skeptical about the rationale for the attack.

By Helene Cooper, Eric Schmitt, Maggie Haberman and Rukmini Callimachi @ NYTimes.com, Jan. 4, 2020, 7:31 p.m. ET

WASHINGTON — In the chaotic days leading to the death of Maj. Gen. Qassim Suleimani, Iran’s most powerful commander, top American military officials put the option of killing him — which they viewed as the most extreme response to recent Iranian-led violence in Iraq — on the menu they presented to President Trump.

They didn’t think he would take it. In the wars waged since the Sept. 11, 2001, attacks, Pentagon officials have often offered improbable options to presidents to make other possibilities appear more palatable.

After initially rejecting the Suleimani option on Dec. 28 and authorizing airstrikes on an Iranian-backed Shia militia group instead, a few days later Mr. Trump watched, fuming, as television reports showed Iranian-backed attacks on the American Embassy in Baghdad, according to Defense Department and administration officials.

By late Thursday, the president had gone for the extreme option. Top Pentagon officials were stunned.

Mr. Trump made the decision, senior officials said on Saturday, despite disputes in the administration about the significance of what some officials said was a new stream of intelligence that warned of threats to American embassies, consulates and military personnel in Syria, Iraq and Lebanon. General Suleimani had just completed a tour of his forces in Syria, Lebanon and Iraq, and was planning an “imminent” attack that could claim hundreds of lives, those officials said [.....]