Republicans pour cash into dozens of US House races previously seen as ‘safe’

Republicans are pouring money into ⁠more than three dozen US House races previously considered “safe” after internal polling showed they could be vulnerable in the November 3 election, according to three Republican operatives familiar with the party’s thinking. The shift is already starting to show in advertising reservations and campaign finance filings. Since September 1, major Republican groups and megadonors have begun spending in at least 39 congressional races where they haven’t previously...