What percentage of the Republican Party is white?

[𝕭𝖆𝖕𝖙𝖎𝖘𝖙𝖆 𝕸𝖎𝖓𝖔𝖑𝖆]

Looking at recent exit polls:

2018 House Election:
86% of Republican voters were white
7% Hispanic of any race
3% other
2% black
1.5% Asian

2016 Presidential Election:
86% white
7% Hispanic of any race
2.5% Asian
2.5% other
2% black

Completely unsurprisingly, the states that "look" more like the Republican Party, or at least Republican voters, seem to be Utah, Idaho, Wyoming and Nebraska.

Of course as Patrick97 suggested many people who vote Republican are not actually registered Republicans.

[𝕭𝖆𝖕𝖙𝖎𝖘𝖙𝖆 𝕸𝖎𝖓𝖔𝖑𝖆]

In Texas, the GOP electorate pre Trump was about 1/3 Latino. Arizona was similar to Texas.

Literally impossible. Not even the total electorate is 1/3 Latino realistically.