The Metropolitan Washington Airports Authority is in charge of the Silver Line project, a new Metro line to Dulles Airport that's estimated to cost more than $5 billion.
A year ago, Wolf asked the Authority to get an outside audit of the project to avoid cost overruns. And what came of that?
"I don't know," Wolf says. "They just refused to do it. I mean, they didn't do it."
Now Wolf is asking the Federal Department of Transportation to do an audit -- whether the Airports Authority likes it or not.
Wolf says he's all for extending Metrorail out to Dulles, "[but] I want it to be done well and on time and on budget."
Wolf says Transportation Secretary Ray LaHood has agreed to have his inspector general issue a report on an annual basis.
The Airports Authority hasn't provided information about the audit.