If you must buy those coin ensure you use a spare money because those coin was just flowed into market and there future potential is no certain. However, inasmuch as we don't know the potential of those coins in the future there is still possibility that there value can appreciate in the future so I will suggest that you should give it a try and hold them for sometime.
As far as am concern, trump coin is a shit coin, therefore anybody who has an interest to invest in the coin is doing so at his own risk, because whatever happen to his investment in the future, the consequences is his to face alone. I won't advise anyone to invest in that shitcoin because it doesn't have the capacity to grow over time. The only reason the trump coin hasn't lose more of it's value than it has already is because donald trump is using his influence as president to hype it. What then will happen to the coin the day he leaves the white office and what will be the fate of Investors who have invested in it? This is what people should consider before embarking on such a journey.
If you are hell bent on taking a risk in an alt coin, then I would advice that you should do it with like 10% of your discretionary income, and you should be targeting a new coin that hasn't had it best days yet, not Trump coin that it best days are behind already.
Even though you invest in it using your discretionary income, you'll feel the pain of losing your investment if it crashes, I consider such investing as gambling because the chances of losing is greater than your chances of profiting from it over time. I think the best advice is avoid investing in it rather than to risk your money on an investment that will give you sleepless nights.