I found this article[1] by the Brennan Center. It alleges this is an attempted federal takeover of elections but it doesn't suggest or allude to voter suppression. I'm not convinced by the article that having access to voter rolls can be considered a federal takeover of election administration (but I'm not in the know and would need things explained more verbosely).
If you have more information about the attempted centralization of election administration and its impacts on voter suppression I would be interested to know more.
1. https://www.brennancenter.org/our-work/analysis-opinion/trum...