But I would disregard any poll that compares one on one.
It needs to include the full 8. That is the only measure of the the primary will really look like. Keep Cornyn from 50% then and he will likely loose the run-off. Run-off voters do not tend to favor an incumbent.
In 10 days early voting starts so we’ll see how the interest is. I
suspect it will be good with the major statewide offices up this year.