Here is an article written recently by a (now mostly retired) FL-based Democratic strategist on his experiences with the state party over the past three decades. In his view, it was the party's decision to outsource key party operations (including things like voter registration) to outside groups in 2009 that set the stage for Republican gains in the state since then - in particular, he mentioned in earlier articles he wrote elsewhere that Republicans chipped away at Democrats' longtime voter registration advantage from 2008 onwards until they finally claimed the advantage in 2021 and have continued to build on that advantage since then.