WSJ: https://www.wsj.com/articles/iraqi-parliament-votes-in-favor-of-expelling-u-s-troops-11578236473 In his address to parliament on Sunday, Mr. Abdul-Mahdi said he had been due to meet Gen. Soleimani at 8:30 a.m. on the morning he was killed as he left Baghdad International airport. Mr. Abdul-Mahdi said Gen. Soleimani was carrying Iran’s response to a message Iraq had conveyed on behalf of Saudi Arabia aimed at easing tensions between the two countries in the region. The prime minister didn’t disclose the exact content of the message.
" ... By late Thursday, the president had gone for the extreme option. Top Pentagon officials were stunned... "
https://www.nytimes.com/2020/01/04/us/politics/trump-suleimani.html