Name the Constitutional Expert

An elected official running for political office said this:

"If [the media] convince enough voters that [what I'm doing] is negative campaigning .... then I don't know what the future of our country would be in terms of First Amendment rights and our ability to ask questions without fear of attacks by the mainstream media."

Got that? When the press criticizes the conduct of a potential government official, our First Amendment rights are threatened.

That would be this First Amendment:

"Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances."

Guess the name of the quoted official above.