Stock markets plunge after huge Dow drop
The plummeting stocks are attributed to US federal reserve's announcement of raising interest rate.
By adjustment of interest rate, the central bank trys to manage stock markets appropriately. So, plummeting stock price at this time is ordinary movement.
But, some people want to attribute it to presidents or prime ministers.
In Japan, plunging stock price was attributed to misleading of PM Abe by con-Abe advocators. (When stock price skyrocketed, it was also attributed to success of PM Abe by pro-Abe activists)
Usually, stock price has nothing to do with what a nation's leader does.