According to WMTW, if the U. S. - Mexican border were ever closed for a significant amount of time, we would run out of avocados in about three weeks.

No more guac or avocado toast (for those who actually eat avocado toast).

Additionally, the supplies of tomatoes, cucumbers, and TEQUILA could be impacted by a border closure.

The Hill has reported that President Trump said, "Mexico is going to have to do something; otherwise, I’m closing the border."