Why must the Federal Reserve make a choice in September?

Simply put:

The Federal Reserve is in a difficult position now:

The world is hoping for interest rate cuts because high rates are causing countries to lack dollars, and their economies are struggling.

If they don't cut rates in September, the BRICS countries' new payment system in October could attract more countries to 'de-dollarize.'

But the Federal Reserve is also confused:

If they cut rates, Wall Street moguls will be dissatisfied.

If they don't cut, the global economy could be dragged down, and the dollar's successors will suffer losses.

Key points:

September is the deadline.

The October BRICS payment system is Plan B.

The Federal Reserve is in a difficult spot now

(It's like being forced to choose, and no matter which side they pick, they will be criticized.)