This is somewhat against Google’s policies:
https://support.google.com/adspolicy/answer/6118?hl=en
WaPo might claim - “we’re not pretending to be CNN, we are accurately stating that we provide breaking news about CNN.” And with CNN often in the news these days, there is some validity to this position.
In general, you can’t even use ‘Coke’ in your ad if you’re Pepsi, as in ‘Tastes better than Coke - buy Pepsi.’