Why not debate them and point out any inconsistencies or BS?
What do you suggest, ban everyone who might disagree with you or who you suspect does not support your candidate? If that's the case, that's bull s**t.
If you can bring facts/links to the exchange do it. Most capable of critical thought can see who the individual is who attempts to evade and deceive.
This is not complex.
I'm glad to hear that.