they're regularly revised up or down because they're (very openly) preliminary numbers released just days after the month ends and before many employers have even answered the survey. When the economy reaches an inflection point they tend to be streaky (multiple revisions down or up in a row) but that's nothing new and mostly just means that the economy has been getting worse over the last year and a half, which... that's one of the big arguments for Trump's victory so I'm not sure why it would be a surprise.