Teddy was a dreadful president.
His reputation is saved by his very worthy military record and the fact that scumbag Wilson came so soon afterwards.
His record is also saved by the fact that authors are terrified to tell the truth about the Theodore Roosevelt progressive record.
Most biographies are nothing but puff pieces that focus nearly exclusively on his love of football, his hunting abilities, etc, and yes his military record as well.
Its mainly the touchy feely stuff. His presidency in relation to the constitution is a largely unwritten topic as an exclusive topic. The only times it is addressed is tucked away inside of other unrelated books, such as the one I linked to.