Conservative author Ben Shapiro is expected to testify before a joint congressional hearing on free speech on college campuses later this month, according to a new report by The Hollywood Reporter.

Shapiro, comedian Adam Carolla and former American Civil Liberties Union President Nadine Strossen will testify before the Committee on Oversight and Government Reform, Subcommittee on Health Care, Benefits and Administrative Rules and the Subcommittee on Intergovernmental Affairs on July 27.

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Lawmakers on the committee include Reps. Darell Issa (R-Calif.), Mark Sanford (R-Fla.) and Jim Cooper (D-Tenn.).

The hearing comes after protests, and in some cases riots, have broken out on college campuses over guests invited to speak to students.

In February, the University of California, Berkeley was locked down after protests broke out against then-Breitbart editor Milo Yiannopoulos, an "alt-right" leader who was scheduled to speak at the school.

Similar protests happened later in the year when Ann Coulter was invited to speak at Berkeley's campus.

Shapiro, one of those invited to testify this month, has also sparked protests among students. He was escorted off the campus of California State University, Los Angeles by police last year after speaking for about an hour amid protests.

--This report was updated on July 18 at 7:22 a.m.