Bill Shorten's soak the rich policies have been getting bolder. In 2016, he floated plans to curb negative gearing and nearly won an election. Last year, a proposed clampdown on family trusts didn't seem to frighten the horses.

And then this week he announced Labor's intention to take the candy away from Baby Boomers by denying them cash refunds on shares in Australian companies. Now it looks like he may have bitten off more than he can chew.