This is the 15163rd most frequent Turkish word.
siyasetçiye
"To the politician" or "to a politician."
Here 'siyasetçiye' is in the dative case and means 'to the politician', indicating the action of asking directed towards the politician.
Bir gazeteci siyasetteki gelişmeleri siyasetçiye sordu.
A journalist asked the politician about the developments in politics.
In this case, 'siyasetçiye' again appears in the dative case, suggesting the gratitude expressed towards the politician.
Öğrenciler siyasetçiye teşekkür etti.
The students thanked the politician.
Here 'siyasetçiye' is in the dative case, referring to the attempt of the people to contact the politician.