KKR, Blackstone, and The Carlyle Group employees made up nearly half of the senator's joint fundraising committee haul in the first three months of the year.
The reps had campaigned to overturn a Trump-era tax hike on the wealthiest Americans.
The American Hospital Association is boosting the Massachusetts Democrat who blocked surprise billing reform.
Reps. Gottheimer and Meeks formed a joint fundraising committee just days after defending private equity at a committee hearing. A new FEC filing shows it raised money almost exclusively from two companies that consumer advocates called out during the hearing.