Rising to senior partner, he specialized in tax-exempt foundations dealing with social problems, better management techniques, medical discoveries and developments in leadership.

He was primarily known for his controversial investigation into tax-exempt foundations.

The tax-exempt private foundation was founded in 1995.

In a letter to the foundation, the Republican leaders said such conduct was "inappropriate for a nonprofit, tax-exempt, supposedly nonpartisan foundation."

After 1979, Ms. operated as a tax-exempt foundation, supported by grants and contributions.

One investor in the transaction was the Cordoba Initiative, a tax-exempt foundation with assets of $20,000.

The course was underwritten, in part, by corporate donations to two tax-exempt foundations.

He later dismissed his violations as "technical," saying lots of politicians run tax-exempt foundations.

The Speaker of the House took donations to tax-exempt foundations and funneled them into partisan projects.

They created a tax-exempt foundation to oversee operations.