Monday Wake-Up Call: Oprah for President? Plus, Apple Investors Worry About Kids' iPhone Addictions

Welcome to Ad Age's Wake-Up Call, our daily roundup of advertising, marketing, media and digital-related news. You can get an audio version of this briefing on your Alexa device. Search for "Ad Age" under "Skills" in the Alexa app. Also, a reminder: The deadline for our Creativity Awards is Jan. 11 at 5 p.m. EST. That's Thursday.