changes in mail delivery. we project that the postal service could lose approximately $7 billion. these declines in volumes and revenue caused us to rethink everything. everything that we are doing. reporter: that rethink starts with a proposal to end delivering mail on saturday, a move the post office would save 3 1/2 billion dollars a year. this professor was chairman of the postal rate commission. the rise of the internet cut off the post office from much of its revenue. a new business model would be a healthy thing for the postal service and a way to staunch the serious decline. reporter: but virginia democratic congressman gerald connolly is on the subcommittee that overseas the post office. he wants to make sure too much isn t cut. you are cutting back on a service, charging more. if your competitors can fill the void you made yourself less competitive. reporter: customers just blocks away from the capitol say they have to get used to not having mail on satu