BREAKING: House Democratic leaders pull the tax bill from the House floor

Washington (CNN) – As the debate over how the tax cut bill will be brought to the floor and voted on was wrapping up, House Democratic leaders abruptly PULLED the "rule" from the floor because they don't know if they have enough votes to even bring the tax bill to the floor, according to a senior Democratic leadership aide.

Before the debate on the tax bill starts, the House first needs to pass the rule on how the debate and votes will go, with a simple majority vote. Because Republicans will all vote against the rule set by Democratic leaders – Pelosi and Democratic leaders need to pass the rule just with Democratic votes.

With so many House Democrats unhappy with the tax bill, many don't want to even bring it up, so leaders pulled the bill and are "whipping it" according to the Democratic leadership aide – counting to make sure they can even pass the rule.