Rep. Frank LoBiondo Frank Alo LoBiondoVan Drew wins GOP primary in New Jersey Amy Kennedy wins NJ primary to face GOP's Van Drew Stimulus price tag of .2T falls way short, some experts say MORE (N.J.) is calling on Environmental Protection Agency (EPA) Administrator Scott Pruitt Edward (Scott) Scott PruittJuan Williams: Swamp creature at the White House Science protections must be enforceable Conspicuous by their absence from the Republican Convention MORE to step down, becoming the fourth House Republican to do so.

LoBiondo, who is retiring from Congress, tweeted on Sunday that Pruitt was the "wrong fit" for the agency.

"Yes EPA Administrator Scott Pruitt should resign. Wrong fit from start for agency dedicated to protecting our environment. # EarthDay2018 reinforces our need to promote pristine planet via clean air & water, leaving it better for future generations. Requires leadership & balance," he tweeted.

Earlier this month GOP Reps. Carlos Curbelo Carlos Luis CurbeloGOP wants more vision, policy from Trump at convention Mucarsel-Powell, Giménez to battle for Florida swing district The Memo: GOP cringes at new Trump race controversy MORE (Fla.), Ileana Ros-lehtinen (Fla.) and Elise Stefanik Elise Marie StefanikRepublicans cast Trump as best choice for women The Hill's Morning Report - Presented by Facebook - Pence rips Biden as radical risk GOP women offer personal testimonials on Trump MORE (N.Y.) also called for Pruitt to step down or be fired.

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The calls for Pruitt to vacate his position as EPA head come amid a flurry of reports on Pruitt's use of taxpayer money at the agency, including his decision to spend thousands building a soundproof booth in his office, and his repeated use of first-class travel. Pruitt has maintained that both expenses are necessary for privacy and security.

President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE has offered support for his Cabinet secretary, tweeting in early April that "Scott is doing a great job!"

Pruitt will be on Capitol Hill on Thursday testifying in front of two House committees on the EPA's budget. He is expected to get a number of questions related to his expenses and travel.