for "nightly business report", i'm morgan brenham. >>> caterpillar avoided paying more than $2 billion in taxes since the year 2000 that says the manufacturing company used an aggressive tax strategy to shift profits overseas. john harwood joins us from washington. john, tell us, what's the goal of tomorrow's hearing? >> the chairman of the committee has been working with republicans, john mccain among others to shine a light on the tax avoiding by american corporations. usually perfect legal tax avoiding but things that he regards as loopholes should be closed, and he's going to try to spotlight some of those with the caterpillar problems. he's making the argument and their subcommittee did an investigation that showed caterpillar spent $55 million on advice from price waterhouse cooper that allowed it to avoid the 2.4 billion in taxes and the subcommittee wants to argue that the irs needs to tighten up, congress needs to, though that's difficult given how divided it is. >> there is low odds this will lead to tax reform. >> tax reform will be difficult. both champions of tax reform, p