The program, called "risk corridors," has been denounced by the GOP as an insurer "bailout."
The Massachusetts Democrat derided Republican assaults on the group as "out of touch."
The Energy and Commerce Committee released a letter to Planned Parenthood's president on Thursday.
Hillary Clinton this week became the latest proponent for scrapping the high-cost health plans.
Cassidy believes skyrocketing drug costs will be an issue in 2016.
The measure is part of a fast-track process to reach President Obama's desk.
The House voted to advance a spending bill to avoid a government shutdown.
Rep. Luis Gutiérrez's bill would allow people in the country illegally to enroll.
Hillary Clinton announced opposition to the tax on Tuesday.
The controversial tax would be implemented by the next president.
Rep. Jim Jordan says he is one of several Republicans who will cosponsor the amendment.
Rep. Gerry Connolly blasted the "disrespect" shown to the group's president Cecile Richards.
Proponents say the bill will save businesses from premium increases.
Democratic presidential front-runner Hillary Clinton is pledging to vastly expand the country’s use...
“I do not intend to respond to your questions," she told a CNS News reporter.
"It is highly unlikely these loans will ever be fully repaid," the Republican chairmen said.
Changing ObamaCare has rarely been so drama-free.
Congressional Republicans are looking for ways to keep the pressure on.
The stopgap spending bill lasts only through December.
Cecile Richards says "they didn’t have anything else to talk about."
Richards faced a barrage of attacks from nearly two-dozen lawmakers over five hours.
The bill would give states flexibility in withholding Medicaid funds.
"We’re going to repeal the five worst parts of the law," Rep. Paul Ryan said.
Rep. Jim Jordan sparred with Planned Parenthood President and CEO Cecile Richards.