Not always a Maddow fan, but I found this tweet from her to be a pretty damning summary of Pence's "deal" with Erdogan:
(1) turkey wants to push the kurds out of that part of syria. (2) trump gives ‘em the OK to invade. (3) pence brokers a “deal” in which the kurds... must get out of that part of syria. (4) the US agrees to un-sanction turkey. that’s a “deal” like being mugged is a deal.