Hi,
Donald's problems are immense and he himself is an immense problem for the country.
His natal chart with a Leo Asc. and a fiery Mars to further boisterously boost his ego make him very insecure and a great attention-seeker. When the ego gets bruised, which it does easily, his Mars is always ready to strike without a second thought (all the shameless name-calling and mocking even the weakest). That Mars trines the Moon, so it is very easy to stir up his emotions (all the temper tantrums we see everyday).
That Mars also rules his home front, the 4th house, via Scorpio and is in Leo (grandeur living - gilded penthouse in NYC). His Sun is in Gemini, so frivolous, and is even more so with that Uranus close by. The perfect mix for being a genius, although they say that the line between genius and eccentricity is rather thin - the Donald personifies it to a tee.
Uranus - Sun also makes him get excited quite easily, highly unpredictable and rather attention-seeking, too, and that Mars in the mix makes this only worse. Mars-Uranus-Sun also make him quite daring - need I give examples here
His thinking, Mercury, emotional and impractical as it already is by being in Cancer, lives in its own grand illusion (he thinks he is the greatest) thanks to its square to Neptune. This man is therefore also quite unethical and applies his mind (Mercury) rather to fleecing (Nep.) others and cheating the system (tax evasion to name just one).
His third house, speaking and thinking abilities, is ruled by Venus, which, to his disadvantage is conjunct a debilitated Saturn (Saturn is in its detriment in Cancer), so, the otherwise practical and sensible Saturn in the Donald's chart is notorious for thinking that all that counts in life is status and success at any cost. It keeps getting its encouragement via that square from Jupiter (expansion and overdoing things). He can apply his mind but to one thing - get richer, and make more and more money (Jupiter applies from the 2nd house). To get richer, he has no qualms about cheating the system and applying dubious methods (Neptune - Mercury square with Mercury ruling the 2nd house).
Boy oh boy, it is going to be some four years...