I think they're still too young to vote and they'd probably only be interested in a 'carrot tops for everyone' party, anyway.
The bunnies actually aren't all that political, my Rabbit Wrangler was helping me a do a Bunny Census since there's ten in the litter and it's hard to count them without a helper. Her sister gave her the tee shirt and it seemed improved when it was filled with baby bunnies.