The Republican Governors Association (RGA) held a fundraiser for West Virginia Gov. Jim Justice (R) on Thursday as the embattled governor faces calls from within his adopted party to resign.

Nebraska Gov. Pete Ricketts (R), who heads the RGA, along with Donald Trump Jr. Don John Trump'Tiger King' star Joe Exotic requests pardon from Trump: 'Be my hero please' Zaid Jilani discusses Trump's move to cancel racial sensitivity training at federal agencies Trump International Hotel in Vancouver closes permanently MORE, appeared at a Charleston fundraiser for Justice on Thursday, a source told The Hill. An RGA spokeswoman confirmed the fundraiser.

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Justice, elected in 2016 as a Democrat, switched parties and became a Republican just eight months after he took office.

He announced his switch at a rally with 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, though he angered West Virginia Republicans by supporting Sen. Joe Manchin Joseph (Joe) ManchinSenate passes resolution reaffirming commitment to peaceful transition of power Hopes for DC, Puerto Rico statehood rise Manchin defends Supreme Court candidate Barrett: 'It's awful to bring in religion' MORE's (D-W.Va.) reelection in 2018.

He has fought with Republicans in the state legislature over teacher pay raises, and he has been dogged by court fights over debts his personal businesses owe to several tax authorities in several states.

State Sen. Craig Blair (R), who heads the Senate Finance Committee, called on Justice to resign last week.

“Jim Justice is an embarrassment to our state and should resign and try to attend to his family business obligations,” Blair wrote in an op-ed in the West Virginia Record.

Justice is likely to face a difficult reelection bid in 2020, in both the primary and general election.

Manchin, a former West Virginia governor himself, is openly considering running for his old job again. Several Republicans, including state Senate Majority Leader Mitch Carmichael, are also said to be contemplating runs.

But Justice will have support from national Republicans, and he is certain to be well funded. A coal magnate worth an estimated $1.5 billion, Justice is the wealthiest man in West Virginia.