The change is the latest editorial reshuffle under Troy Young, who became president of Hearst's magazine group last summer, and placed a stronger emphasis on digital.
Cooperman already owns about 10% of American Media Inc., which last month put the 'Enquirer,' 'National Examiner' and 'Globe' up for sale amid a cloud of controversy.
The media faces an even bigger challenge now - trying to cover 24 Democrats in the race to date.
Semmer will work to expand the magazine's video audience, which includes 5 million subscribers on Google's YouTube video-sharing site.
TV production is booming as Netflix, Amazon, Apple and even Walmart search for content. Studios also like the idea of producing shows based on true stories because they generate more publicity.
Arc publishing plans to add machine learning to the subscription services platform. The technology can help identify readers most likely to subscribe.
We've reached a nadir in our culture when students at an esteemed university like Harvard are cracking jokes about the Holocaust.
The issue offers tips on studying, decorating dorm rooms, dating and meeting new people, but doesn't have a celebrity on the cover.
Rich Macke is now the publisher of the 'Star-Herald', 'Gering Courier' and 'Hemingford Ledger.' He sees their role as a watchdog of the community.
Australia's magazine readership rose 1.6% in the past year, a modestly positive sign that its publishers can maintain or grow their print and online audiences.