Democrats in Arizona have demanded that Congress include funding to install and use high-tech vehicle scanners capable of detecting fentanyl in an area of the southern border that has become the epicenter of where federal customs officers intercept smugglers.

Senate candidate Rep. Ruben Gallego (D-AZ) and Arizona Attorney General Kris Mayes told reporters on site in Nogales, Arizona, on Monday that available scanners for the ports of entry are sitting nearby, unused and ready to go if only Congress would provide the money to stand up the machines.