Republican National Committee Chairwoman Ronna Romney McDaniel lashed out Friday after President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE came under fire for ordering then calling off a retaliatory military strike on Iran over the downing of a U.S. drone.

“If Obama had called off air strikes, the media would demand he get the Nobel Peace Prize,” McDaniel tweeted. “Such a double standard.”

Trump on Thursday night ordered a retaliatory strike on Iran after reports emerged the previous day that Iran had downed a U.S. Navy surveillance drone.

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“We were cocked & loaded to retaliate last night on 3 different sights," Trump tweeted Friday morning, adding that after he found out 150 people could die in the process, he called it off.

“10 minutes before the strike I stopped it, not proportionate to shooting down an unmanned drone,” he wrote.

....On Monday they shot down an unmanned drone flying in International Waters. We were cocked & loaded to retaliate last night on 3 different sights when I asked, how many will die. 150 people, sir, was the answer from a General. 10 minutes before the strike I stopped it, not.... — Donald J. Trump (@realDonaldTrump) June 21, 2019

Democratic lawmakers, including Sen. Elizabeth Warren Elizabeth WarrenHillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Democratic senators ask inspector general to investigate IRS use of location tracking service MORE (Mass.), who is running for president, slammed Trump over the move.

Warren tweeted Friday that “there is no justification for further escalating this crisis,” criticizing Trump for pulling out of the Obama-era nuclear deal that provided sanctions relief to Tehran in exchange for new limits on Iran's nuclear program.

Donald Trump promised to bring our troops home. Instead he has pulled out of a deal that was working and instigated another unnecessary conflict. There is no justification for further escalating this crisis—we need to step back from the brink of war. https://t.co/roUHtzRlE8 — Elizabeth Warren (@ewarren) June 20, 2019

Trump blamed Obama for U.S.-Iran tensions, tweeting that the former president “made a desperate and terrible deal.”

“Iran was in big trouble and he bailed them out. Gave them a free path to Nuclear Weapons, and SOON,” Trump said. “Instead of saying thank you, Iran yelled Death to America. I terminated deal, which was not even ratified by Congress, and imposed strong sanctions.”

Some have compared the situation to when Obama in 2012 drew a “red line” regarding the use of chemical weapons by Bashar Assad’s government in Syria but later pulled back.