We've battled with the authorities to change the system.
He's always battling with management to get things changed.
He provided the media with a human interest angle on politics: he was an approachable politician, an outsider who was battling against entrenched interests.
This is a legitimate question, especially given that we are still battling weeds in conventional agriculture after 50 years of herbicide use.
The metaphorical framework of battling disease links his concerns about euthanasia (which he opposes) and iatrogenic illness (which he thinks inadequately opposed).
