AXIOS (Hans Nichols) - Scoop: Democrat Senate Super PAC targets 4 Republican seats
The Democrats' main Senate super PAC is booking another $54 million in TV ads for the midterm campaign's final stretch, targeting four Republican-held seats. Why it matters: The new reservations offer a roadmap to where Democrats think they can flip seats. - Republicans' last major advertising reservation was aimed largely at defending incumbents — and protecting the GOP "red wall" to preserve their majority. By the numbers: Senate Majority PAC, the super PAC aligned with Senate Minority Leader Chuck Schumer, is expanding its footprint in four battlegrounds. - Ohio: $24 million more behind former Sen. Sherrod Brown, bringing its total reservation to $60 million. - Iowa: $17 million more for state Sen. Josh Turek, increasing the total…