Sen. Jon Tester (D-MT) is putting the blame on Republicans for the millions of dollars in high-tech fentanyl scanners that have remained unused at the southern border, asking Congress to approve the funds needed to install them. 

The drug scanning equipment has sat unused because Customs and Border Protection doesn’t have the $300 million needed to install them, CBP Commissioner Troy Miller told NBC News. In a letter sent Friday to the House and Senate appropriations committees, Tester said that the reason the agency doesn’t have the money is due to the Republicans who blocked the bipartisan border deal last month containing the funds for the scanning installation.