Police said the package recovered in Manhattan addressed to De Niro, who dropped an expletive insult at Trump at this year's Tony Awards, was similar to the other pipe bombs recovered this week.
The Hollywood actor's profane Tony Awards speech led to the recirculation of rumors that he was involved in a "prostitution ring that used children."
A list purportedly offers controversial and embarrassing statements about rape made by Republican politicians.
Cameron and McConnell are both prominent politicians in Kentucky and have previously worked together.
The Democratic vice-presidential candidate's pro-abortion-rights record has come under scrutiny from conservatives.
A decision by the U.S. Department of Justice to make details public in an ongoing investigation drew strong rebuke.
According to the Old Testament, the Nephilim were were the offspring of the "sons of God" and the "daughters of men" before the Deluge.