According to a report from The Washington Post, DHS Secretary Kirstjen Nielsen and White House Cheif of Staff John Kelly.

The Washington Post:

Around the same time, Nielsen was complaining to colleagues — and her then-boss, DHS secretary Kelly — about how the administration botched its travel ban. She panned Trump’s statement about the border wall, saying it was unlikely to ever be built. Kelly agreed. The two sometimes joked about it.

Nielsen has come under fire from Trump has of late. In a meeting, Trump railed against Nielsen demanding policy fixes to the problems at the border.