The blue money wave in Senate races

Democrats are trouncing Republicans on the airwaves in the battle for the Senate, outspending them in nine of the top 10 competitive Senate races.

Why it matters: Even before President Trump's COVID diagnosis, Republicans were growing increasingly concerned that Democrats' money advantage could flip control of the Senate.

While some outside super PAC money for the GOP is starting to even it up, Republican candidates have been outspent for the year, according to data provided to Axios by Advertising Analytics.
Democrats need to pick up four seats to win...