President Donald Trump wants interest rate cuts. Federal Reserve Chair Jerome Powell says that cannot happen yet. Those two competing visions were set for a collision course Tuesday as Powell provides regularly scheduled testimony to the Republican-controlled House Financial Services Committee.

Trump is urging the Fed to cut rates to save the U.S. government money on its interest payments affixed to the vast national debt. Yet the Fed has long resisted considering the government’s financing costs when making interest rate decisions, preferring instead to focus on the health of the economy and inflation.