“Obama owes the American people an explanation and apology. If he won’t do it, Bill ClintonWilliam (Bill) Jefferson ClintonTrump’s first year in office was the year of the woman Can a president be impeached for non-criminal conduct? Dems search for winning playbook MORE should,” Barrasso said. “The American people deserve better than what they’ve gotten under this terrible healthcare law.”

Obama will spend the next few days defending his signature healthcare law as Republicans try to defund ObamaCare in a spending measure to keep the government funded through mid-December.

Barrasso said it’s time for Obama to admit his law is flawed and work with Republicans to repeal and replace the legislation.

“President Obama failed to keep his promises and he’s failed to convince Americans that this law is good for them,” Barrasso said. “It’s time for the president to admit that the healthcare law is terribly flawed.”

Senate Majority Leader Harry ReidHarry Mason ReidDems search for winning playbook Dems face hard choice for State of the Union response The Memo: Immigration battle tests activists’ muscle MORE (D-Nev.) is expected to advance the House-spending bill while stripping out the language that defunds ObamaCare. It’s unclear how the House will proceed when the bill is returned to that chamber.

The government will shut down on Oct. 1 if Congress doesn't approve some form of government funding measure.