Colombia maintained well before Trump decided to do deportations that the US could send people back, humanely. Trump tried to do it inhumanely, so Colombia refused the planes and immediately dispatched the presidential aircraft to pick up deportees in a humane manner.

Trump threw a hissyfit, threatened tarriffs, Colombia reiterated that all the US needs to do is feed the deportees and not transport them cuffed in military aircraft (same thing Brazil is complaining about), and Trump relented. It's the only explanation that fits the full timeline here.

It's a total political humiliation for Trump in a sane world, but here we are. He just bullshits his way through.