He was one of the most powerful advocates for democratic change, before and after the Soviet dissolution.

Sandy was a powerful advocate for teachers and students.

You are a good friend to your general, and a powerful advocate.

We must be powerful advocate of our own values.

The organization has become a powerful advocate for outdoor education and sustainable land management.

In the process he became widely known as a powerful advocate for the Old Faith.

He was a powerful advocate of "life long learning."

He was also a powerful advocate, who was offended by what the House managers had done.

He, along with Jack, was a powerful advocate for much of the high technology that keeps us operating and growing today.

Before the change, the borough presidents had been powerful advocates for community projects and dollars.