Possessive apostrophe-s on three nouns in a row

I just read Two possessive nouns in a row, but am still trying to wrap my head around possessive apostrophe-s in English, specifically, I am trying to say something along the following lines:

"The American news outlets’ CNN’s and Fox News’ coverage of the election" (‘s on all possessive nouns)

or should it be

"The American news outlets CNN and Fox News’ coverage of the election" (‘s on the last possessive noun)

or

"The American news outlets’ CNN and Fox News coverage of the election" (‘s only at the first possessive noun)