Well, the FOMC actually determines those bond rates by buying or selling federal securities and by raising or lowering the interest rate on reserves at the Fed.
By hoovering up federal debt, the Fed can keep the return on bonds low. However, with the amount of staggering debt we have, the Fed's balance sheet is getting out of control. I called it the Fed's Doomsday Bond Bubble Machine years ago.
However, our debt is getting so large, it is just a matter of time before the non-governmental entities who also buy our debt will begin to doubt our ability to pay them back and they will demand higher returns.
That's the infamous Debt Spiral which requires more borrowing to pay the interest on our debt, which leads to a demand for even higher returns, and so on.
That's the real reason Trump wants the Fed to lower interest rates, inflation be damned.
Inflation is one of six ways to reduce government debt. It's a soft default.