hot button
US /ˈhɑːt ˌbʌt.ən/
UK /ˈhɑːt ˌbʌt.ən/

1.
gorący temat, drażliwa kwestia
a topic or issue that is highly controversial and emotionally charged, often leading to strong reactions or arguments
:
•
Abortion is a hot-button issue in many political debates.
Aborcja to gorący temat w wielu debatach politycznych.
•
Bringing up taxes is always a hot-button topic at family gatherings.
Poruszanie tematu podatków to zawsze gorący temat na spotkaniach rodzinnych.