Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page American Enterprise Institute:

"

In 1964, William J. Baroody Sr., and several of his top staff at AEI, including Karl Hess, moonlighted as policy advisers and speechwriters for Republican presidential nominee Barry Goldwater. "Even though Baroody and his staff sought to support Goldwater on their own time—without using the institution's resources—AEI came under close scrutiny from the IRS in the years following the campaign," Andrew Rich writes.[1] Representative Wright Patman subpoenaed the institute's tax papers, and the IRS investigated for two years.[2] After this, AEI's officers scrupulously attempted to avoid even the appearance of political advocacy.[1]