There are no easy answers , and long-term consequences of any changes must be thought through , he told the committee . NEW : Whistleblower says an armed contractor was allowed on an elevator with Obama . The White House has denied the allegations and said it is investigating them. Rep. Darrell Issa cites instances of `` misbehavior '' that undermine trust in Secret Service .
NEW : Whistleblower says an armed contractor was allowed on an elevator with Obama . The White House has denied the allegations and said it is investigating them. Rep. Darrell Issa cites instances of `` misbehavior '' that undermine trust in Secret Service .