What ever influence a politician must have impacted in any altcoins, it can not make such altcoins to be the best choice of all investors. Every investor still have their preference for what ever coins or token they want to invest into and the politicians can not detect or force people on the token they should buy or not.
The donation of ripple is actually because they need something in return but I doubt if kamala can win the election.
Politicians could only change a persons idea based on how much they love that politicians. I mean think about it this way, if you are very much in love with Kamala Harris and you love her so much that you are going out and trying to get a lot of votes for her and work everyday to get her some voters basically working for her every single day, then you are going to end up with a lot of people like that investing into Ripple because how Ripple is investing in her election as well.
However, if you are a person who doesn't care about her or any other politician then you are not going to care, then it's all about if you like Ripple or not, if you do then you can get it and if you don't then you won't, on the other hand if you are a Trump supporter then you are going to sell any Ripple you have and never buy one neither. This is why that is what matters and we should be considering how this is going to be the most important part and not going to matter much.