President Donald Trump has spent months pressing the Federal Reserve to lower interest rates, arguing that cheaper borrowing would act as "Rocket Fuel" for the U.S. economy. But the result so far has gone in the opposite direction, leaving him on the losing side of that campaign.

Instead of easing, borrowing costs have become more expensive since the war in Iran began, according to the developments described in the report. That shift matters because higher rates can ripple through the economy, affecting everything from business financing to consumer loans and overall economic momentum.

Trump has repeatedly portrayed high interest rates as out of step with the size and strength of the U.S. economy. His argument is that lower rates would support faster growth and give the country an added economic boost. Yet even as he keeps up pressure, market conditions have made that goal harder to achieve.

The clash highlights a broader tension between the White House's push for faster growth and the forces shaping borrowing costs in real time. For now, Trump's battle for lower interest rates appears unsettled, but the recent rise in borrowing costs has clearly worked against the outcome he wants.