I work AV and have worked many of these events on both sides of the aisle. Presidents, VP’s, presidential hopefuls, the whole gamut. The democrats tend to be less organized but way more friendly and accommodating, the republicans are very their way or the highway, but tend to have all their ducks in a row. As far as attending you hear someone parrot ideas that you’ve already heard before, and either already agree with or don’t. They won’t take any hard stances and are unlikely to answer any questions, if they do they will answer the softball questions and sidestep the hard questions. All in all, largely a waste of time and resources.
The only two that I’ve worked that didn’t fall into that category was beto o’rourke and chris christy. Both of them were very engaging with the audience, were willing to answer hard questions, they actually seemed like they cared, and were doing this for country, not career.
You can also get all in one’s that both wash and dry in a single unit if space is a concern. They tend to be a bit pricier because it’s literally two functions in one item but not terrible.