Senate Majority Harry Reid, D-Nev., told reporters that Sen. Ted Cruz, R-Texas, who began speaking without interruption on the Senate floor Tuesday in opposition to funding Obamacare, isn't engaged in a real filibuster.

"There's no filibuster going on now," Reid said Tuesday. "People can come and talk, but they can't do anything to change when we vote." The vote is scheduled for Wednesday.

Cruz took the floor today, explaining that he "intended to speak out in defense of defunding Obamacare until I can no longer stand."

Senate Minority Leader Mitch McConnell, R-Ky., told reporters he would not object to having the cloture vote before tomorrow -- Reid would like to have it as soon as possible, to leave more time before the budget deadline to respond to any legislation the House passes -- but that can't happen if Cruz holds the floor today.

"If Obamacare is so wonderful, why is it that its loudest advocates don't want to be subject to it," Cruz said, in reference to legislators who want congressional staff exempted from Obamacare.

He also faulted his Republican colleagues who opposed the push to defund the health care law through the continuing resolution by alluding to "The Little Engine That Could." "The message would be simple — that little engine can't," Cruz said.