Is Erdogan a pathological liar? I honestly don’t know. He seems pretty transparently authoritarian.
Trump on the other hand, we know for sure is a liar! And just stop and think for a second…does this sound like something Trump would do? Of course it does.
When you destroy your credibility everyday for 9 months (or 3 years…or 40 years really) it really gets scary considering you cannot trust your own government to tell you the truth about literally anything. With Obama I expected them to hide some things about some top secret intelligence issues and stuff most governments do, or to spin somethings in a positive light. But he was honest and forthcoming almost all the time.
Even with Bush and the WMD/Iraq/Saddam issue, their was still some semblance of trust left. Not with Trump.