Kamala Harris set out to run a vibes-based campaign, and the vibes appear to have shifted. Over the course of a few weeks, the Democratic nominee's national polling lead has evaporated, according to the RealClearPoltics average. Late Wednesday, the polling aggregator's founder described the overall trajectory this way: "17 days ago Harris had a 2.1% lead. She was at 48.9. [Donald] Trump was at 46.8. Today Harris is at....48.8. Trump is now at 48.6."
