Reported accounts given on condition of anonymity, claim the mission was carried out with insufficent planning.
Tillerson's confirmation comes amid high tensions between Republicans and Democrats embroiled in contentious battles over Trump's cabinet picks.
President Donald Trump named Neil Gorsuch as his first nominee for the Supreme Court during a primetime announcement at the White House on Tuesday night.
Republicans cleared the path for DeVos with a party-line vote of 12, while 11 democrat committee members voted against her.
Joseph Jones and J.P. Prince may not be able to return to Iran because of the country's retaliation efforts over President Trump's travel ban.
The former "Apprentice" star dodged questions relating to controversies surrounding Trump's presidency.
Trump signed three executive actions on Monday afternoon, including withdrawing the U.S. from the Trans Pacific-Partnership deal, a freeze on federal hiring and an order that bars foreign aid recipients or non-governmental agencies from supporting abortion.