In another tweet he says a 25% tariff and in another tweet he says...
"I will never allow Colombians to be brought in handcuffs on flights. Marco, if that was allowed by officials of the Foreign Ministry, never under my direction. They will be sepoys. I am a man of freedom, not of chains"
So while people think him sending a plane to get the deportees himself means he backed down, I think what he is actually saying is he refuses to see Colombians be treated like slaves and will bring them back with some dignity rather than shackled and in chains, not the shitty manner in which America is doing it. And they've not actually backed down on the other issues yet.
Anyway, that tweet is absolute fire and how everyone should be responding to this fucking bully.