President TrumpDonald John TrumpDemocrats blast Trump for commuting Roger Stone: 'The most corrupt president in history' Trump confirms 2018 US cyberattack on Russian troll farm Trump tweets his support for Goya Foods amid boycott 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 GrahamLincoln Project offers list of GOP senators who 'protect' Trump in new ad The Hill's Morning Report - Presented by Facebook - Trump backs another T stimulus, urges governors to reopen schools Democrats awash with cash in battle for Senate 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) GaetzNadler: Barr dealings with Berman came 'awfully close to bribery' Some in Congress want to keep sending our troops to Afghanistan Gianforte halts in-person campaigning after wife, running mate attend event with Guilfoyle 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 PaulKoch-backed group urges Senate to oppose 'bailouts' of states in new ads How conservative conspiracy theories are deepening America's political divide Gianforte halts in-person campaigning after wife, running mate attend event with Guilfoyle 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.