Ian Gershengorn, the school's lawyer, told the judge the "impact of the proclamation is devastating to Harvard and its students."
He said Trump signed the proclamation to retaliate against Harvard in violation of its free speech rights under the U.S. Constitution's First Amendment for refusing to accede to the administration's demands to control the school's governance, curriculum and the ideology of its faculty and students.
Justice Department attorney Tiberius Davis countered that Congress had given Trump "sweeping authority" under the Immigration and Nationality Act to suspend the entry of specific categories of foreign nationals, which the president relied on to address national security concerns at Harvard.
"We don't trust them to host foreign students," Davis said.
The Trump administration has launched a multifront attack on the oldest and wealthiest U.S. university, freezing billions of dollars in grants and other funding and proposing to end its tax-exempt status, prompting a series of legal challenges.
Harvard has filed two separate lawsuits before Burroughs seeking to
unfreeze around $2.5 billion in funding and to prevent the administration from blocking the ability of international students to attend the university.
Homeland Security Secretary Kristi Noem on May 22 announced that her department was immediately revoking Harvard's Student and Exchange Visitor Program certification, the governmental mechanism that allows it to enroll foreign students.
Her action was almost immediately blocked by Burroughs. While the Department of Homeland Security has since shifted to challenging Harvard's certification through a months-long administrative process, Burroughs at a
May 29 hearing said she planned to issue a "broad" injunction to maintain the status quo.
A week later, though, Trump signed his proclamation, which cited national security concerns to contend that Harvard is "no longer a trustworthy steward of international student and exchange visitor programs."
The proclamation suspended the entry of foreign nationals to study at Harvard or participate in exchange visitor programs for an initial period of six months and directed Secretary of State Marco Rubio to consider whether to revoke visas of international students already enrolled at Harvard.
At Monday's hearing, Davis cited Harvard's acceptance of foreign money including from China and what he said was an inadequate response to the administration's demand for information on foreign students who engaged in illegal activity during a period of "increased unrest" on its campus as examples of those national security concerns.
Trump has accused Harvard of creating an unsafe environment for Jewish students and allowing antisemitism to fester on its campus. Protests over Israel's treatment of Palestinians during its war with Hamas in Gaza have roiled numerous universities' campuses, including Harvard's.
Source: Reuters