Which of the following was a lasting impact on the watergate scandal

The correct answer is letter D.

Americans came to mistrust the government because of the many cover-ups that the Nixon presidency brought forth to its people. It was discovered through series of investigations that Nixon used the FBI, CIA, and IRS to interrogate activists and political figures .

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

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.