More likely to have the opposite effect. Historically speaking, good poll numbers help a candidate and bad poll numbers hurt them. That’s why low quality partisan polls are always boosting their own side’s numbers and not the other guy. Republicans are already far less enthusiastic about voting in the mid terms this year. Telling them their side can’t win is only going to discourage them that much more.

Fox News is a shit hole run by lying sociopaths, but they do take their political polling seriously. It’s one of the few areas where they have any credibility at all. I wouldn’t be surprised if they’ve been intentionally vague and overly cautious with their analysis of the data so that they can hide some of that potential blue wave in the big pile of toss up races. But you can only fudge things so much without looking incompetent, especially if they have to resort to more obvious methods of tipping the scales.

Honestly, the actual poll is barely even news at this point. A year and a half ago the conventional wisdom was that the Senate as safely red while the House was going to be tough fight. But for months now the House has been looking like a lost cause for the Republicans, and, especially in the last few weeks, the Senate is looking like an uphill battle for them too. What’s newsworthy here is that Fox is actually reporting it.