Let's get one thing straight: We can learn from everything - hence, with that in mind, let's reflect on the US Presidential race and how TRUMP played his cards right.
First of all, TRUMP has always been able to understand promotional marketing and the concepts needed (attention, interest, retained interest) and how to fully enhance his portfolio based off of amateur marketing principles.
What we can take away from TRUMP's marketing campaigns is that, in actual fact, his name 'TRUMP' is all that is needed. Therefore, without a specific visual logo or design to promote the product (himself), he was able to promote his name more than any of his enterprises because they all include his name. It is further implicit within his extensive coverage across digital and social media, often bringing his ability to garner attention to the table.
Not only did TRUMP's marketing efforts win him the election, however also generated over USD$5billion in overage - whether you like him or not, that is incredible.
oI have always mentioned the three stage process - product/market/sale - throughout all of my talks, and to effectively generate sales you must be efficient within the first two functions. To take this a step further, TRUMP has shown that his ability to create the product (himself as a Presidential Candidate), to then market himself at almost every opportunity available, has lead him to secure an easier sale process between him and US voters.
Not only has the sale process been made easier for him due to marketing principles, but his product (opinions, values and ideologies) has clearly resonated with millions of citizens in the United States. This has further promoted the fact that his candidacy has excelled against mainstream candidates due to his authentic, attention-seeking approach which marketers dream about, and citizens of the USA vote for.
Let's Break It Down
Although you may not like his character, TRUMP is a very effective marketer and salesperson, only appropriated into the context of politics.
TRUMP lost the election, but his marketing and sales skills flew through the minds of voters with flying colours. Clinton didn't have anywhere near the promotional marketing and sales experience to compete with TRUMP, and hence, she lost to his [marketing and sales] campaigns. This also meant that she lost the election.