President Trump insisted Monday morning he’s not done with the idea for a concrete border wall, the type of structure he promised repeatedly on the campaign trail in 2016.

“An all concrete Wall was NEVER ABANDONED, as has been reported by the media,” Trump tweeted Monday. “Some areas will be all concrete but the experts at Border Patrol prefer a Wall that is see through (thereby making it possible to see what is happening on both sides). Makes sense to me!”