The Democrat Party were gonna show Hillary Clinton gratitude. There might even be some people who actually think she's gonna be a good president, too. But for the most part it was they owed her. They owed her big time. They still do, and so does he.
For proper family portraits it's best to stick with classic, timeless looks that will not only be beautiful now but also in 20 years, and keep the wardrobe color palette similar so it looks like the group shot was well planned.