hidden agenda
US /ˈhɪd.ən əˈdʒɛn.də/
UK /ˈhɪd.ən əˈdʒɛn.də/
1.
a secret motive or purpose behind an action or statement
:
•
I suspect he has a hidden agenda for offering to help us.
•
The politician was accused of having a hidden agenda to privatize public services.