[D]. the incompetence of postal unions.

邮政工会不称职。

" Ann's always supported me to do what I've wanted, " including leading his postal union local, he said.

“安一直支持我做我想做的事，”包括领导当地的邮政工会，他说。

And interest groups ranging from postal unions to greeting-card makers exert self-interested pressure on the USPS's ultimate overseer-Congress-insisting that whatever else happens to the Postal Service, aspects of the status quo they depend on get protected.

上到邮政工会下到贺卡制造商的各方利益集团都出于自身考虑，向美国邮政署的最高监管机构——国会施加压力，坚称无论邮政总署怎样调整，他们目前赖以生存的条件必须得到保护。