Days after his administration moved to stop Harvard University from enrolling foreign students, President Trump said at a news conference Wednesday that the Ivy League college should set a limit for how many international students it accepts.

President Donald Trump said Harvard University should cap its foreign student enrollment at 15%, ratcheting up his criticism of the school in a wide-ranging fight that has seen the administration seek to force changes to the elite institution.

President Trump’s comments come as the administration pushes the school and other academic institutions to change many of their policies.