In PPP's
last poll (the date is typo'd) they asked a variation of the Brexit for the US with Texas leaving.
Among almost every crosstab it was roughly 20-25% for Texas to leave, 60-65% for them to stay. Except three.
Among 18-29 year olds it was 37% to leave, 46% to stay. Among Hispanics it was 40% to leave, 44% to stay. Among those who say they're very liberal it was 43% to stay, 53% to leave.
Also, a lot of the Democratic-lean demographics (hispanics, 18-29, very liberal) seem to think Hillary is in her mid-50's and Trump his mid-70's.
More important poll findings in the NBA thread.