Definitely do attack Trump for his racist, anti-science posturing and policies. Definitely don’t attack Trump by talking about Melania’s shoes.
If we think about this situation critically for a moment, we have to acknowledge that all Trump is really doing is walking the line of pandering to his base and catering to the very oligarchy of which he is a member. If Trump seems more outlandish and goonish than his predecessors, it’s only because his base is more proudly ignorant than previous Republican bases, and the oligarchy, emboldened by its deepening grasp on both sides of the aisle, is pilfering more brazenly than in previous administrations. This is to be expected in a world where the establishment has consistently moved the Overton Window to hover right above the intersection of Neofascist Avenue and Neoliberal Lane.