Legally, Here are a few things he can do...
He can purchase gifts with it (as long as it isn't "family"), He can use it on a future campaign or give it to another persons campaign, He can use it on people who worked on his campaign, or he can donate it to a charity.
Donating it to charity is pretty much known to be a money laundering scheme. They keep operating expenses and pass the rest on, round and round until it is all dolled out.
Those who label words as violence do so with the sole purpose of justifying violence against words.