Former Alaska Gov. Sarah Palin (R) is jumping on the push to defund ObamaCare by threatening a government shutdown.
Palin urged lawmakers to demand that a government funding bill include no funding for ObamaCare in an email sent out by the Senate Conservatives Fund, a group running ads pressuring Republican senators to back the effort.
Palin remains popular among grassroots conservatives and her support could fuel additional Tea Party backing for the defund ObamaCare position.
Sens. Ted Cruz (R-Texas), Mike Lee (R-Utah) and Marco Rubio (R-Fla.) are among the conservatives who argue the GOP should risk a government shutdown over defunding ObamaCare.
But other Republicans are sounding the alarm bells about the strategy, arguing the GOP will be blamed for a shutdown.
Some even argue forcing a shutdown would be the only way Republicans could lose their House majority next year.
Speaker John Boehner (R-Ohio) is calling for his party to back a short-term government funding bill set at the levels of the sequester, which imposed automatic spending cuts on the government. He is not advocating that the bill strip all funds for ObamaCare.