Senate Republican leaders are calling on their conference members to torpedo a bill that would provide more than $61 billion in military and humanitarian aid to Ukraine because immigration and border reforms are not included in the package.

After tempers flared at a classified briefing on the Ukraine war and senators got into a shouting match over border security, getting a measure passed this week seems unlikely.

According to The Hill, Senate Republicans will move to block Senate Majority Leader Chuck Schumer’s 11th-hour proposal to bring President Joe Biden’s emergency foreign aid request to the floor with a bipartisan bill to disrupt the fentanyl supply chain and an assurance that Republicans can propose the bill’s first amendment.