A fairly good article on the underlying issue:
www.ft.com
lira depreciacion is merely caused by the foreign impact as the turkey showed middle finger to them lot of times in recent years. You forgot how trump crashed lira with one twit?
No one forced Erdogan admin to choose this policy of loan intake and infra spend (over say RnD and esp export-based factories).
This is the main driver in the decline of Lira right now along with CA. deficit and inflation rate.
Only CA deficit there is a good excuse in that tourism has crashed a big deal due to Corona that was outside of Turkey govts hands in the root issue creation.
But inflation rate and loan pressure are near solely on Erdogan Admin:
USD to TRY currency chart. XE’s free live currency conversion chart for US Dollar to Turkish Lira allows you to pair exchange rate history for up to 10 years.
www.xe.com
If we are talking about trump tweet spike, is that the one in mid 2018 in that chart?
If so, it was fairly transitory as you can see to the overall trend driven by Turkey govt.