Biden dropped out of the race and Kamala announced her bid for DNC nominee as presidential candidate, which is seeming to be very likely. The meme is pointing out how that since she's turned into a potential candidate, a lot of positive news about her background has come up. The joke is playing into this narrative. It's saying that on top of all the real policy she's interested in making, she's also going to mandate the corporation Taco Bell to provide a popular menu item that has been removed.