Likely voters should still be composed of a likely electorate.
http://media.wix.com/ugd/3bebb2_6dffa5c2ac444487a847ea56c2698285.xlsx?dn=ECPS-September-15-RESULTS%20(public).xlsxEven though their topline is weird and weighted mostly by 2012 vote instead of race, they have very thorough crosstabs in the spreadsheet. She doesn't do completely terrible with the white vote, and if this email noise gets resolved soon, I think she can do better.
In Jeb vs Hillary, Jeb gets 52% of the white vote and she gets 37%.
For Hispanics, he gets 29% and she gets 54%.
In Rubio vs Hillary, he gets 49% of the white vote, she gets 40%.
He gets 27% Hispanic, she gets 66% (very small subsample though).
In Trump vs Clinton, he gets 51% of the white vote, she gets 39%.
He gets 22% Hispanic, and she gets 67%.