You should never endorse somebody just because of what you hear about them or even if you know them because you've been in the ministry for so many years, personally I don't even think anybody should be endorsing anybody but letting God's people discern for themselves hopefully by the Spirit of course whom they should be influenced by and not be influenced by. It seems like when you endorse somebody you're putting them on a type of pedestal. We need to let God promote those He deems worthy of promoting. Shalom