In a post to social media, Mangini said it was "a privilege to work alongside such wonderful people and I'm grateful for the opportunities and experiences I've gained."
In addition to television coverage, Fox News Radio will cover the speech and the Republican response with Jared Halpern and Jessica Rosenthal anchoring coverage.
“They are looking for something that seems like it’s trying to be fair, and I think that it’s a harder way to make a buck in the news business, for sure.”