have a dog in the fight
US /hæv ə dɔɡ ɪn ðə faɪt/
UK /hæv ə dɔɡ ɪn ðə faɪt/
1.
to have a personal interest or stake in a situation or outcome
:
•
Of course he cares about the election results; he has a dog in the fight because his business will be directly affected.
•
She claimed to be neutral, but everyone knew she had a dog in the fight.