Follow the steps to cast CNN through Chromecast:

1- Setup: Ensure your Chromecast-enabled device and your iOS device are connected to the same Wi-Fi network.

2- Open CNN App or Website: Open the CNN app (if available) or use Cast for Chromecast app’s web browser to navigate to the CNN website (www.cnn.com).

3- Select Video: Choose the CNN video or live stream you want to watch.

4- Choose Chromecast: Select your Chromecast-enabled device from the list of available devices.

6- Start Casting: The CNN content should now be cast on your TV.