Armed DHS agents knocking on doors in search for possible noncitizen voters

Armed federal agents have knocked on doors in some states searching for any potential noncitizen voters ahead of midterms, a CBS News investigation found. CBS News investigative reporter Madeleine May reports.

Armed federal agents have knocked on doors in some states searching for any potential noncitizen voters ahead of midterms, a CBS News investigation found. CBS News investigative reporter Madeleine May reports.