She has given more than $1 million to the Democratic campaigns in 2000 and what her lawyer called an "enormous sum" to the Clinton library.
Ms. Rich's lawyer has also told the government committee that she gave an "enormous sum of money" to the Clinton library.
The project is a precursor to the Clinton library, to be completed in late 2003 in Arkansas.
Under a plan that the archives administration turned over to Congressional leaders last month, the endowment for the $175 million Clinton library is $7.2 million.
James Polshek's solution, as at the Clinton library, was a bridge.
On days when the clinic is closed, he pickets the Clinton presidential library.
But he emphasized that the process of designing the Clinton library was in its most embryonic stage.
The committee made plans to subpoena Skip Rutherford, the president of the Clinton library.
That agency estimates that it will cost over $4 million to operate the Clinton library in its first year.
After the keys to the Clinton library are handed over to the National Archives on Thursday, the federal government will take control of its message.