President TrumpDonald TrumpSanders: Reinstating SALT deduction 'sends a terrible, terrible message' GOP braces for wild week with momentous vote One quick asylum fix: How Garland can help domestic violence survivors MORE said his order to launch the drone strike that killed Iranian Gen. Qassem Soleimani came amid pressure from Senate Republicans he views as key allies in his upcoming impeachment trial, The Wall Street Journal reported and The New York Times reported this week.

The articles did not name the GOP senators, but many of Trump's allies in the Senate, including Sen. Lindsey GrahamLindsey Olin GrahamMcConnell safe in power, despite Trump's wrath Lindsey Graham: GOP can't 'move forward without President Trump' House to advance appropriations bills in June, July MORE (R-S.C.), have praised his decision to take out the Quds Force commander in Baghdad.

Graham, an Iran hawk who is also chairman of the Senate Judiciary Committee, has been outspoken in his support of Trump's strike on Soleimani and in his opposition to Trump's impeachment.

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The New York Times reported that Trump said on a phone call that he had been under pressure by some Senate Republicans to take a harder line on Iran.

Though many GOP senators have voiced their support for Trump's actions in Iraq, three House Republicans on Thursday voted with Democrats on a measure to limit the president's military powers. Among them was Rep. Matt GaetzMatthew (Matt) GaetzGOP braces for wild week with momentous vote Gaetz, Greene tout push to oust Cheney: 'Maybe we're the leaders' Rural community leaders call on Gaetz, Greene to 'stop dividing America' ahead of US tour MORE (R-Fla.), one of the president’s biggest supporters during the House impeachment hearings.

Some Senate Republicans have also pushed back on Trump's military authority. Sen. Rand PaulRandal (Rand) Howard PaulTim Scott sparks buzz in crowded field of White House hopefuls Sherrod Brown calls Rand Paul 'kind of a lunatic' for not wearing mask Overnight Health Care: WHO-backed Covax gets a boost from Moderna MORE (R-Ky.) in particular has questioned the administration's use of a 2002 authorization as the basis for the drone strike in Baghdad that killed Soleimani.