Looking to attack Ron Kirk in his home base of Dallas, the campaign for John Cornyn has started airing attack ads. From the description in this Chron article, it appears it's the same ad we've already seen here in Houston. At least now I know that it was paid for by the RNC.

There's some interesting commentary on the state of this race and Kirk's support in Dallas at the Daily Kos. Be sure to read the comments for some insight from a Dallas resident.