Of course it's a coup by Timothy Snyder
The below post summarizes how the events of February 2025 are, indeed, a very real coup attempt.
Of course it’s a coup
Miss the obvious, lose your republic
For more information from Timothy Snyder, you can read the short book (~70 pages, link below) about how authoritarianism and totalitarianism have happened before. This book presents twenty lessons from the twentieth century, adapted to the circumstances of today.
The below link will take you to the Internet Archive website with a readable PDF version of the book: