The Safeguard American Voter Eligibility (SAVE) America Act is the newest controversial bill that’s been introduced to Congress. The bill mandates stricter controls on federal elections, such as a valid ID, proof of citizenship and heavily restricting mail-in ballots.

So far, the bill has passed the House with a 218-213 vote that was largely along party lines. Currently, the SAVE Act is awaiting vote in the Senate, where it needs 60 votes for a cloture motion to end the filibuster on the bill and allow a simple majority vote on it.

While the Senate is currently controlled by the GOP, they narrowly hold control with only 51 seats. Based on the partisan vote we saw in the House, it’s unlikely any Democratic Senators will be willing to change sides to pass the bill, let alone nine. Democrat lawmakers are concerned that if the legislation is passed, millions of citizens who simply don’t possess the required documents will lose their vote.

Republican lawmakers tried to pass the act last year, but it faced countrywide scrutiny due to the strict requirements the bill would impose and failed in the Senate. Since then, the legislation has been amended and now requires “documentary proof of United States citizenship” which could be a REAL ID, U.S. passport, military ID and record of service or a photo ID showing that your place of birth is the U.S. which must also be shown with a birth certificate.