Cruz spent Tuesday evening and early Wednesday morning on the Senate floor giving a 21-hour speech in opposition to funding ObamaCare.

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

Cruz took to the floor to try to convince his Republican colleague not to support efforts to advance a House-pass continue spending resolution that defunds ObamaCare because Senate Majority Leader Harry ReidHarry Mason ReidAmendments fuel resentments within Senate GOP Donald Trump is delivering on his promises and voters are noticing Danny Tarkanian wins Nevada GOP congressional primary MORE (D-Nev.) will likely remove that language.

Reid is expected to advance H.J.Res. 59 by the end of the week with an amendment to remove the House language that defunds ObamaCare. Several Republicans have said they are unwilling to risk a government shutdown to despite their opposition to the healthcare law.

Levin said Cruz’s tactic of threatening a government shutdown unless he got his way turns the vision of the Founding Fathers on “its head.”

Levin suggested that he too has issues he feels strongly about, such as universal background checks for all gun purchases and closing offshore tax loopholes for the wealthy, but that he would never threatened to shut down the government unless he got his way.

“I feel very strongly about having universal background checks for the purchase of a firearm,” Levin said. “Should I threaten to shut down the government if I don’t get my way? … No.”

Levin questioned if Cruz truly believed “anarchy” was an acceptable approach in pursuit of achieving his goal to end the healthcare law.