As Trump nears his 100th day in office, a new Post-ABC News poll found that a historically low 42 percent of Americans approve of his job performance thus far. (Video: Jenny Starrs/The Washington Post, Photo: Jabin Botsford/The Washington Post)

THE MORNING PLUM:

As we stumble toward the 100-day mark of the Trump presidency, the president’s frequent assaults on the news media appear to have taken on a distinct purpose. With the White House visibly agitated by the possibility of brutally negative 100-day coverage of President Trump’s tenure so far, he has insisted that the press is misrepresenting his record, while also vastly inflating it himself — thus preparing his voters to dismiss everything they are being told about his historic lack of accomplishments.