Corporations through their drive to advertise can use any available cultural prejudices for its own political and economic ends, but these cultural allusions are usually intended to be spread broadly across many different groups of consumers, thus advertisements rarely have exclusive meanings, instead they are supposed to appeal to a wide-spread but heart-felt desire.
Trump appealed politically to a narrower group of consumers who watched his show at a time when affluent viewers were abandoning “reality” TV. His luxury properties were the basis for selling himself to viewers who could never afford them. In the process of promoting himself down-market, he inevitably started losing his exclusive status. His first efforts positioned him as an upper class guy who reached down to the lower-- the authoritarianism of the boss, whose personality is a lot like any tough worker. He then went further into the forbidden feelings of his target audience, showing that the racism of the poor white television viewers can be mobilized in an election.
An economic problem appears for Trump in that the more that businesses move into the realm of prejudicial politics, the less economic control they have over the behavior their advertising produces. Most ads just want you to buy a commodity. With advertising that taps into powerful, repressed desires, companies cannot be sure that they will continuously sell their product. Most corporations do not want to reduce their brand to a single personality, the preferred strategy is to build consumer loyalty over generations rather than for a short four-year run and to do so across diverse cultural groups.
All people are supposed to associate Mercedes with efficient luxury and ease rather than with the Führer, yet as Triumph of the Will shows, for a brief flash the Mercedes symbol was coupled with the swastika. This strategy was abandoned of course so that now Mercedes, like most other brands, seems devoid of specific political content.
By attaching a radical political message to his name, Trump is trading his brand for political power, which is why his initial strategy was to expand the entertainment properties into new markets that were far removed from the immediate US political scene, hence the need to develop a positive, high-end image in the Russian and Chinese markets, a collusion that the leaders of both countries well understood.