A wild Texas GOP primary is getting wilder. A new poll out Tuesday shows Tea Partier Debra Medina trailing Senator Kay Bailey Hutchison by a mere four points, within the poll's margin of error.

The Public Policy Poll shows Governor Rick Perry leading the field for the Republican gubernatorial nomination with 39% of GOP voters. But he would need a majority of the vote on March 2 to secure an outright victory -- any less and he's headed toward a run-off. Not only is such a run-off looking more likely with the rise of Ms. Medina,...