DALLAS - One week before the Republican presidential primary in South Carolina, where polls suggest she trails by an insurmountable margin, Nikki Haley was in Texas, promising to go national, as most primary candidates, even in the most dire circumstances, usually do. Despite big losses in Iowa, New Hampshire and Nevada, and the steep odds facing her in South Carolina, her home state, Haley is showing no signs of relenting. She is still raking in donations and building out her national footprint
