Check out Gary Younge's article, "Counted out: Trump's desperate fight to stop the minority vote", the latest piece in The long read section at The Guardian. Excerpt:
The trouble is that as white people become a minority in the US, efforts to disfranchise non-white voters necessarily become ever more crude and ever more desperate, but cannot be guaranteed to produce results. The sums just don’t add up. The group sought for exclusion is growing at a faster rate than can plausibly be excluded. Republicans have only won the popular vote once in the last eight presidential elections. This, in no small part, explains the bizarre moment we find ourselves in, with many Republicans refusing to admit what everyone else can plainly see – that they lost the election. They are howling at the moon because they are running out of options here on Earth.
