The actual journalists involved with the Watergate scandal had input on the script

This is less about a specific scene and more about the entire film itself. In real life, Carl Bernstein and Bob Woodward broke the story while at the Washington Post. When it came time to write the film, they worked on the screenplay (albeit separately), along with proper screenwriters.

They also got the input of the editor of the Washington Post as well, to help create an accurate portrayal of the scandal.