It seems you are referring to political events. Kamala Harris being “coronated” might be referring to her becoming the Vice President of the United States.
As for Chicago getting a “democracy stress test,” this could refer to a number of challenging situations. This could be concerning the city’s management, election issues, social or civic unrest, or responses to national political occurrences.
If you need more specific information, could you please provide more details or context? I’m here to help.