This number comes from pollster Mike Baselice, based on high turnouts in Harris County. I’m surprised, because I thought there would be a lot of apathy in the absence of a presidential race. This level of participation would be good for David Dewhurst, because it would indicate that a lot of people who don’t usually vote in primaries are coming out, as opposed to a smaller turnout, which would indicate that most of the voters are frequent primary voters.