The separation of Arnold Schwarzenegger and Maria Shriver undoubtedly will create a tabloid frenzy, even though they both have called on the media to respect their privacy. The two very public figures were an unlikely coupling when they wed in 1986, but by the time Schwarzenegger was elected governor in 2003, they were a dynamic union. Joe Mathews, author of “The People’s Machine: Arnold Schwarzenegger and the Rise of Blockbuster Democracy,” told “Today” that “it was maybe the ultimate example of a political marriage. Here were two people who, despite their differences, made it work.”

Adam Nagourney writes in the New York Times this morning, “The announcement suggested the end of what has been one of the more remarkable political unions, one that brought together a product of 5697213779_cc23014860_o Hollywood and a member of one of the nation’s most celebrated political dynasties. Ms. Shriver, as a symbol of Democratic tradition and politics, gave Mr. Schwarzenegger a political legitimacy that proved critical in a recall election in which he ousted a Democratic governor, Gray Davis.”

Over the weekend, Loyola Marymount sent out video and photos of Schwarzenegger and Shriver attending their nephew’s commencement. Shriver herself appeared in a video on her website in March in which she talked of transition and the stress “to not know what you are going to do next.”

The Real Mrs. Gingrich: The Times also profiles Callista Gingrich, the wife of Newt Gingrich, who is set to announce a presidential bid on Wednesday. Often overlooked is that the Gingriches have had some success in running a documentary film arm, which she oversees.

Poets Who Know It: The White House on Wednesday hosts a celebration of American poetry and prose, with Elizabeth Alexander, Billy Collins, Common, Rita Dove, Kenneth Goldsmith, Alison Knowles, Aimee Mann and Jill Scott. Also added to the bill: Steve Martin and the Steep Canyon Rangers. The entire event will be streamed live on whitehouse.gov.

Update: The Daily Caller reprints some of Common’s rap lyrics, which they note “includes threats to shoot police and at least one passage calling for the “burn[ing]” of then-President George W. Bush.” Common appears to be amused by it all, as he Tweeted, with a note of sarcasm, “I’m dangerous!”

Fab Abs: Rep. Aaron Schock appeared on “Today” on Monday to help promote the latest issue of Men’s Health, in which he appears on the cover.

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