Sen. Ted Cruz (R-Texas) left, and Sen. Mike Lee (R-Utah) during a news conference with conservative Congressional Republicans at the Capitol in Washington, Thursday, Sept. 19, 2013. Cruz and Lee stand as the Senate’s dynamic duo for conservatives, crusading against President Barack Obama’s health care law while infuriating many congressional Republicans with a tactic they consider futile, self-serving and detrimental to the party’s political hopes in 2014. (AP Photo/J. Scott Applewhite) Sen. Ted Cruz (R-Texas) left, and Sen. Mike Lee (R-Utah). (AP Photo/J. Scott Applewhite)

Sen. Mike Lee (R-Utah), one of the leaders of the Defund Obamacare effort, assured Sunday that the effort will not lead to a government shutdown.

Asked point-blank about a potential shutdown, Lee said -- as he has said before -- that it won't come to that.

"No. We all know that the government is going to be funded. The questions is whether it will be funded with Obamacare or without," Lee said on NBC's "Meet the Press."

Lee and other supporters of the Defund Obamacare movement have said they will not support a budget that would fund the president's signature health care law. If Republicans stand by that pledge and won't support a budget that funds Obamacare -- something Democrats are insisting on -- it seems increasingly possible that Congress won't pass a budget by the deadline at the end of the month.

Lee said much that same thing at the outset of the Defund Obamacare debate.