(NEW LONDON)—Missouri Senator Claire McCaskill made a campaign stop Monday in New London. McCaskill used a stop at the Forget Me Not Senior Citizen’s Center in New London to promote legislation to reform the US Postal Service.  McCaskill says she helped pass a one year moratorium on closing over a hundred post offices. McCaskill says the post office’s financial problems come from having to pre-fund health care costs for 75 years.