According to the New York Times, Scott Walker, the Republican candidate for governor is worried that they can't. Of course, the NYT did not make the issue quite this clear to readers.
It told readers that Mr. Walker is worried that subsidies to high speed rail could cost Wisconsin $7-$10 million a year. It would be necessary to divide by Wisconsin's population of 5.6 million to realize that an expenditure of 2.8-4.0 cents a week is a high item on the Republican gubernatorial candidate's list of concerns.
(Thanks C. Mike for catching my initial error.)