Shortly after the House of Representatives passed the reconciled tax bill, it was pointed out the bill violated Senate rules.
The Senate parliamentarian said three provisions violated the Byrd Rule and would be removed. The Senate is operating under the budget reconciliation process to pass the bill with 51 votes rather than 60; the Byrd Rule restricts what kind of provisions can be added under the reconciliation process.
That means the House will have to vote on the bill again Wednesday. The Senate will likely go ahead with its vote Tuesday night on a version of the bill with those provisions stripped out.