He said the best solution was to get an acceptable tax deal.
Belfast has been taking full advantage of a new tax deal which makes Northern Ireland more attractive as a film location.
The tax deal is negotiated with the individual Canton in which you are to reside.
For Merrill, the tax deals were very profitable, netting the company more than $20 million a year in fees.
George Bush and his tax deal made that impossible.
The recent tax deal has given families a chance to rethink how they transfer wealth.
The tax deal reached in December was unexpectedly generous toward gift and estate taxes, so personal wealth advisers foresee benefits for charities.
And nobody can blame smart property owners for taking advantage of 421-a tax deals.
Sanders' office said the intention was to "speak as long as possible against a tax deal between the White House and congressional Republicans."
The report will trigger a National Audit Office investigation, led by a judge, which could look into up to 10 large corporate tax deals.