Original sentence: The release of these papers was politically embarrassing to the Johnson and Kennedy administrations but also to the incumbent Nixon administration.This was not the first successful attempt by the federal government to restrain the publication of a newspaper, as Lincoln illustrated during the Civil War
Edited sentence: The release of these papers was politically embarrassing to those involved in the Johnson and Kennedy administrations but also to the incumbent Nixon administration.This was the first successful attempt by the federal government to restrain the publication of a major newspaper since the presidency of Abraham Lincoln during the US Civil War