Last week at the RNC, Fox News dominated the ratings, beating not only the cable nets, but broadcast as well. 

What a difference a week makes. 

Now that the scene has shifted to DNC in Philly, Fox News has fallen to last place and CNN tops the ratings. 

It shows the echo chamber that viewers really do watch their news in. 

Donald Trump likes to call CNN, the Clinton News Network and it seems that when the spotlight shifts to Clinton, that is where the left likes to turn. 

MSNBC has also seen a ratings bump at the DNC, but CNN is leading the way. This Presidential election is the first time that cable has topped broadcast at the DNC. 

It is also a good bet, that Rupert Murdoch will not be sending a memo to the Fox News staff about how great the ratings were this week.