he's talking about the president's belief that there needs to be a border wall between the united states and mexico. he says, quote, to be honest, it's not a wall. the president still says wall. oftentimes he'll say barrier or fencing. now he's tended towards steel slats, but we left a solid concrete wall early on in the administration. kelly there revealing that at some point in discussions, the president left behind the idea of a concrete wall between the u.s. and mexico. but the president this morning not allowing john kelly to define his definition of wall. here's a tweet from the president in which he writes, quote, in all concrete wall was never abandoned. and as been reported by the media, some areas will be all concrete, but the experts at border patrol prefer a wall that is see-through, making it possible to see what is happening on both sides. makes sense to me. further, the president tweeted after that that the only way to have good border security is with a strong and powerful wall. he also called on democrats to return to the nation's capitol