President TrumpDonald TrumpNYT: Rep. Perry played role in alleged Trump plan to oust acting AG Arizona GOP censures top state Republicans McCain, Flake and Ducey Biden and UK prime minister discuss NATO, multilateralism during call 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 GrahamTrump selects South Carolina lawyer for impeachment trial Democrats formally elect Harrison as new DNC chair McConnell proposes postponing impeachment trial until February 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) GaetzCheney tests Trump grip on GOP post-presidency Florida Republicans close ranks with Trump after Capitol siege The Memo: Historic vote leaves Trump more isolated than ever 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 PaulSunday shows preview: All eyes on Biden administration to tackle coronavirus The Hill's Morning Report - Biden takes office, calls for end to 'uncivil war' Senate confirms Biden's intel chief, giving him first Cabinet official 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.