Probably not correct to say that it was almost banned, though many called for its abolishment. President Teddy Roosevelt summoned the leading head coaches to the White House and pressed for changes to make the game safer. Unsurprisingly, Teddy loved college football and wanted to preserve it.
I have recommended this book before and will do so again. A must read for any college football fan - The Opening Kickoff.
Link: The Opening Kickoff