If he could come back, he would be astounded at what became of his movement. I doubt that he ever considered that it could end where it is today.
That is what he deserves for thinking that the Constitution was obsolete. Teddy Roosevelt did more to expand Government power than any other president before him, with the possible exception of Lincoln.
I hestitate to agree with people who shout "Teddy Roosevelt was a [communist] Prog!" One of the people shouting that loudest has been Obozo, trying to use a Rushmore Republican President to "endorse" posthumously his Sovietcare scheme.
In fact, Roosevelt never even came close to endorsing Communist medicine. The plank the Obamaliars point to in the 1912 Progressive Party platform refers to what nowadays is called "key man" insurance, or "short-term disability", and would have been a private insurance arrangement paid for privately by industrial employers (only -- not everyone), to help deal with serious, crippling mill and plant workplace injuries.
Obama lied. As usual. Repeatedly, again as usual.