The Federal Open Market Committee decides the interest rates....it's 12 members, not just Powell. "They" evaluate economic data, employment, inflation, and growth, to guide its decisions on interest rates.
They're not like Trump who has the House, Senate, and SCOTUS but still insists on Executive Orders for everything. That's not how our government was meant to work.
You Magas are just mad because Trump is... the funny thing is that Trump wants the interest rates lowered to make himself look good..... not for the best interests of the country.