Nonetheless, the central bank reiterated it will be patient as it determines future adjustments to interest rates due to global economic and financial developments and muted inflation. "Our Federal Reserve has incessantly lifted interest rates, even though inflation is very low, and instituted a very big dose of quantitative tightening," Trump said in a post on Twitter. The Fed is scheduled to announce its next monetary policy decision after a two-meeting on June 18-19, with CME Group's FedWatch Tool currently indicating a nearly 71 percent chance rates will be left unchanged.