Two more schools have turned down an offer by President Trump to join a “compact” that would give them preferential access to federal funds in exchange for agreeing to a series of demands aligned with the administration’s ideological priorities.

On Thursday, the University of Southern California and University of Pennsylvania both declined to join the compact.

“We are concerned that even though the Compact would be voluntary, tying research benefits to it would, over time, undermine the same values of free inquiry and academic excellence that the Compact seeks to promote,” USC’s interim President Beong-Soo Kim said in a statement.

Penn’s president J. Larry Jameson said: “At Penn, we are committed to merit-based achievement and accountability.”

The universities joined Brown University, which declined the president’s offer on Wednesday, and MIT, the first to turn it down last week. Since then, the administration has extended the proposal beyond the nine schools it had originally offered it to, to all universities in the country. So far, there have been no takers, and protests have mounted on campuses across the country calling on universities’ leaders to reject it.

“The Trump compact is not just wrong — like many of the Trump administration’s attacks, it is unconstitutional,” American Association of University Professors’ president Todd Wolfson said in a statement. “It violates the First Amendment by forcing universities to surrender their rights of free speech and academic freedom in exchange for federal funds.”