That won't happen because if Congress supports and helps Trump fire Powell , it will have serious consequences for the US. The world will lose faith in the USD because the Fed is known as an independent agency, their mission is not only to ensure the US economy but also the world. If Powell is fired, it means the Fed has become politicized and is no longer trustworthy. Trump understands that better than anyone, which is why after much criticism, threats and pressure on the Fed to lower interest rates, he has made it clear that he has no intention of firing Powell.
https://edition.cnn.com/2025/04/22/business/trump-says-he-has-no-intention-of-firing-jerome-powell/index.htmlYes, I know. I hope that doesn't happen. Or we'll be off to extreme economic uncertainty for good. At least, for Americans. The rest of the world will adapt and eventually choose a USD alternative as its reserve currency. With only one year left before Powell's term ends, the odds of Trump firing the chairman are slim. Best bet would be to wait until May 2026, and replace the chairman with one that's loyal to Trump. That could also undermine investors confidence in the US, as the FED will become highly-politicized.
Another thing that could happen is Trump and his administration abolishing the FED for good (End the Fed). It's part of Trump's "Project 2025" agenda (read the document to see for yourself). At least, Europe is doing well. The ECB's rate cuts are a needed boost for the economy. Let's what happens in the long run.