Prayer: Is it allowed to skip Friday prayer if the Imam is known to be a liar?

Practical Laws of Islam as per the teachings of Imam Khamenei

Prayer: Is it allowed to skip Friday prayer if the Imam is known to be a liar?

English:

Question #615:

What is the rule regarding not participating in Friday prayer when it is established for the mukallaf that the Imam is a liar?

Answer #615:

The contradiction in the speech of the Friday prayer Imam is not evidence for that. It is possible that he may have made a mistake, an error of judgment or even taken the side of tawriyah. One should not deprive oneself of the blessings of the Friday prayer just due to imagination that the Imam is not ‘ādil anymore.

-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Prayer