Are Liberals in trouble in wealthy seats?

Australia's major political parties are gearing up for the next federal election. And it's not just political parties in preparation mode: there's also a growing clutch of climate-conscious independents planning on campaigning too. Their platforms are heavily focussed on more ambitious targets for climate policy, and the battlegrounds they're preparing for are a string of wealthy, Liberal-held seats in Sydney and Melbourne. So can these aspirational independents really flip some of the Government's most-prized electorates, from Wentworth and Mackellar in Sydney to Goldstein and Flinders in Melbourne? Could they flip enough of them to change the Government? Featured:  David Speers, Host, Insiders, ABC TV