On the final weekend of the gubernatorial campaign, Gov. Rick Perry was in Midland — exactly where he was on the final weekend of the Republican primary — pushing the same anti-Washington message that has kept him comfortably ahead in the polls for most of 2010. "Make no mistake," he told the assembled crowd, "this is a national election." His Democratic challenger, Bill White, was in a leafy Houston neighborhood, knocking on doors, energizing volunteers and insisting that the pundits and promulgators of conventional wisdom are dead wrong. "We have broad support," White insisted. "We are in a position to win this race."