By a vote of 58-42, opponents of the Iran deal failed to make it through a procedural hurdle in the U.S. Senate on Thursday.

The vote marked the last chance of opponents of the Iran deal to block the international nuclear agreement from becoming law.

Four Democrats and 54 Republicans voted to end debate and advance to a final vote on the Iran deal. 42 Democrats were opposed.

Senate Majority Leader Mitch McConnell has pledged to hold a second vote next week to end debate on the motion to disapprove the Iran deal but it is unlikely that any additional Democrats will change their vote.

The House held a vote on a non-binding resolution on Iran as well today. It passed along straight party lines.