It is not permissible to pray behind an imaam who is a charlatan and liar

No File Exists
Check below answers in case you are looking for other related questions:
He prayed behind an apostate imam for five years and was aware of his apostasy
Praying behind an imam who commits some sins

No File Exists
Related Answers:
One who comes into the mosque joining one who has stood up to complete the rak’ahs he missed
Is it valid to pray behind one who makes grammatical mistakes when he recites Qur’aan?
Ruling on saying Ameen before the imam
He prayed behind an apostate imam for five years and was aware of his apostasy
Praying behind an imam who commits some sins

Recommended answers for you:
The limits within which a married couple may enjoy intimacy with one another, and the ruling on a man suckling from his wife
The time of Duha prayer
Ruling on shortening the sides of the hair more than the middle
If image-making is haraam, how come it is permissible to watch TV and videos?
How many hours is it permissible for a person to sleep?