These four words were taken from the articles first sentence, and is all the proof anyone needs to understand her party affiliation, just by the absence of the word Democrat or D, before or after the word mayor. The non-race of the bodyguard is not the first relevant clue, or even needed.
Prior to he council stint she specialized in ethics for a couple of business and social responsibility. She is married to a guy who is a professor at her MBA alma mater, Vanderbilt (pricey school). Born in California, grew up in Overland Park, KS and attended private Catholic Hgh School for girls. Norte Dame de Sion and then got an elementary school teachers degree from Baker University in Baldwin, KS.
We actually have non party affiliated mayoral races here, so it would be inappropriate to say what party she is in, but yes, a liberal Democrat in all but name.