President Trump issued a new warning about the situation on the U.S.-Mexico border following his trip to Texas, warning the country “cannot be safe” without a wall as drugs and human traffickers can flood the country and saying it’s “far worse” than others would understand.

“Humanitarian Crisis at our Southern Border. I just got back and it is a far worse situation than almost anyone would understand, an invasion! I have been there numerous times – The Democrats, Cryin’ Chuck and Nancy don’t know how bad and dangerous it is for our ENTIRE COUNTRY,” Trump tweeted Friday. “The Steel Barrier, or Wall, should have been built by previous administrations long ago. They never got it done – I will. Without it, our Country cannot be safe. Criminals, Gangs, Human Traffickers, Drugs & so much other big trouble can easily pour in. It can be stopped cold!”