Story highlights Michael D'Antonio: Trump tweeted a slam of Franken's behavior but has stayed largely mum on allegations against Roy Moore

D'Antonio says Trump has history of abusive treatment of women

Franken, in his eyes, is a weakling for being brought to account, unlike Trump who got elected President

Michael D'Antonio is the author of the book "Never Enough: Donald Trump and the Pursuit of Success" (St. Martin's Press). The opinions expressed in this commentary are his.

(CNN) This commentary contains graphic language.

When Donald Trump finally tweeted, after days of silence, about a case of sexual harassment, it wasn't about the shocking stories of Alabama Senate candidate Roy Moore and teenage women, but about Minnesota's Sen. Al Franken.

And while Franken's conduct is appalling (it came with photographic evidence showing Franken appearing to grope the breasts of a sleeping Leeann Tweeden), the presidential tweet offered a revealing insight into Donald Trump's own thoughts about women.

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"The Al Frankenstien picture is really bad, speaks a thousand words. Where do his hands go in pictures 2, 3, 4, 5 & 6 while she sleeps?" wrote Trump who in an audio recording released during the 2016 campaign bragged to Access Hollywood host Billy Bush that when "you're a star," women will let you "grab them by the pussy ... you can do anything."

Moore and Franken are just two of many men in politics and entertainment whose reputations and power have been damaged by sexual misconduct allegations. Franken, a former comedian, is the first in this current wave to have worked in both realms. This is something he has in common with President Trump.