[Yo-Yo]

It sure looks like a chroma key, but I think it’s only a camera with way too much detail enhancement cranked in that gives the hard edges around the in focus portions of the scene, Hillary and her lectern.

[Jeff Chandler]

but I think it’s only a camera with way too much detail enhancement

Like the Sharpen tool in Photoshop.

[x]

You sound like you might know.

Is this an example of the "soap opera effect"?