A Hot Potato - Idiomatic Expression

Idiomatic language is one of the hardest things to learn in a language because you might hear the words and understand each individual word, but have no idea that the words together have a different, idiomatic meaning. This is a phrase that could be used in IELTS Speaking.

For example:

The abortion issue is a political hot potato in my country.

Britain's EU membership is a political hot potato at the moment.

The migrant issue is a hot potato in Europe.

IELTS Speaking - Complex Language - Lexical Resource - Idioms