Been around for a while.
Every campaign, various campaign workers are urged to identify former members of the opposite party who are switching their allegiance. In 2004, for example, all they wanted were warm bodies who had voted Democrat at least once before, to join “Democrats for W”.
This is the same thing. It means little. Both parties do it, hoping to peel away voters with an example to follow and then publicizing the *defections*. SOP.