У него просто крыша поехала

January 2012. Interest Rate  - 5.75, USD/TRY ~ 1.8

In comments late Tuesday, Mr. Erdogan also said market interest rates should be lower. High interest rates, he said, cause inflation—contrary to orthodox economic theory accepted around the globe. "We will make the necessary sharp responses against the interest-rate lobby. We won't let the interest-rate lobby work in comfort," he told reporters in Ankara.

https://www.wsj.com/articles/SB10001424052970204124204577154353478071244

March 2015. Interest Rate - 7.5, USD/TRY ~ 2.5

Turkish President Tayyip Erdogan on Saturday said anyone opposing interest rates cuts was guilty of treason, piling more political pressure on the central bank.

https://www.reuters.com/article/us-turkey-economy-erdogan/turkeys-erdogan-says-high-interest-rate-lobby-guilty-of-treason-idUSKBN0LW0Y520150228

May 2018. Interest Rate - 16.5, USD/TRY ~ 4.5

“If my people say continue on this path in the elections, I say I will emerge with victory in the fight against this curse of interest rates,” Erdogan said in a speech to business people in Ankara, referring to snap elections on June 24.

“Because my belief is: interest rates are the mother and father of all evil.”

https://www.reuters.com/article/us-turkey-currency/turkeys-erdogan-calls-interest-rates-mother-of-all-evil-lira-slides-idUSKBN1IC1NV

July 2018. Interest Rate - 17.75, USD/TRY ~4.8

Turkey's lira weakened to a record low of 4.9767 against the dollar in overnight Asian trade before trimming losses on Thursday, hit by worries about economic management and monetary policy under Tayyip Erdogan's stronger executive presidency.

The lira has shed some 22 percent of its value against the U.S. currency so far this year as investors fret over President Tayyip Erdogan's influence on monetary policy and his repeated calls for lower interest rates.

"We have many instruments. I believe we will see interest rates fall in the period ahead," the Hurriyet newspaper cited Erdogan as telling reporters after his first foreign trip following his inauguration.

"I am sure not just our state banks but our private banks will shoulder responsibility if necessary."

https://www.reuters.com/article/us-turkey-currency/turkish-lira-hits-record-low-after-erdogan-interest-rate-comments-idUSKBN1K20UQ