Early days yet, but a 36% drop in illegal immigrants crossing the border is one success. He also came good on his promise to ban travellers from muslim countries, which unfortunately had to be watered down. Predictably, this is because like us, the courts are now run by left-leaning judges.
However, his biggest achievement is giving real enjoyment to millions around the world, to watch the righteous indignation, spite, tantrums, hysteria and pathetic whining of those on the left. Following on from Brexit, showing up the moronic, left-wing cry babies for the gullible, naïve sheep that they are is enough, even he were to achieve nothing else. Looking forward to his second term already.