You must tiptoe through a minefield when discussing politics at home.
tiptoe through a minefield
idiomTo approach a situation with great caution because it contains many hidden dangers or problems.
The manager had to tiptoe through a minefield of office rivalries while trying to announce the new budget cuts.
Navigating the delicate negotiations required the diplomat to tiptoe through a minefield of historical grievances and conflicting national interests to reach a lasting peace agreement.