Localize the races. Local, local, local. Put Simon Roseburg, Pete Buttigieg, and James Carville in an executive committee to come up with strategies.
As for specific policies? Emphasize the Sun Belt, but don't turn it into a campaign about Russia and Trump. Poll what issues do well.
Yeah, pretty much this. Run on relevant district issues and let Trump's mouth-frothing stupidity speak for itself.
Hillary's campaign wasn't about issues, and so she came across as a hypocrite when she and her campaign and surrogates repeatedly assaulted Trump, allowing O'Malley to go around supporting her and calling Trump a fascist.
Poll
