As the Biden administration still refuses to close the southern border to dangerous drug traffickers, Florida Sens. Marco Rubio and Rick Scott have called on federal public health agencies not to ignore the risk the fentanyl crisis poses to older Americans. The Republican lawmakers highlighted this concern in a recent letter to Drug Enforcement Administration Administrator Anne Milgram. The impetus for the letter — which was also signed by GOP Sens. Mike Braun of Indiana, J.D. Vance of Ohio, and Pete Ricketts of Nebraska — was a report released by Braun in December. Read: Florida Grand Jury Fi…