The University of Texas/Texas Tribune internet survey of 1,200 registered voters was conducted from June 5 to June 14 and has an overall margin of error of +/- 2.83 percentage points. Among registered voters in Republican primary races, the margin of error is +/- 4.37 percentage points; in Democratic primary races, it is +/- 4.58 percentage points. Numbers in charts might not add up to 100 percent because of rounding.
http://www.texastribune.org/2015/06/22/uttt-poll-cruz-leads-by-a-little-clinton-by-a-lot
