It would be better to have them put up a site of some sort with similar/the same information worded a little differently, maybe write some articles of their own (Is Trumpcoin the future of political funding?). The idea being that when someone searches "TrumpCoin" or "Trump Coin" or What is "Trumpcoin" etc on their favorite search engine that the entire first page is a site providing good, intriguing information,.

The only way a trump related domain that redirects to the official site helps us is if that domain was getting direct "type in" traffic to begin with OR if you want to prevent others (critics?) from having it in the future.

Controlling the first pages of the search engines should be a priority at some point. So if it only costs one a few bucks, might as well grab a domain and put up a little version of your own pro TrumpCoin media.