The story is as follows: Rep. Henry Waxman (D-CA), the head of the Committee on on Oversight and Government Reform, is curious about a call made by Heideh Shahmoradi, an aide at the Transportation Department, to a member of Congress. Since Shahmoradi left a voicemail instead of speaking directly to that Congressman, Waxman was able to get the transcript of the call, and he says it seems like this DOT aide was lobbying against California's tougher carbon emission standards by saying it would hurt (the exact phrase is "greatly impact") the car factories in the member's district. There's more, including the letter Waxman send to the DOT Secretary, over at TalkingPointsMemo, which is always good for this sort of reporting.
Of course, we don't know all the details here, and any assumption of actual illegal acts is premature. But can't we start coming down on the side of "likely" once in a while?