Gulf Coast prepares for landfall as Hurricane Isaias gains power

Millions along the Gulf Coast are on high alert as Hurricane Isaias gains power and moves closer to land. Isaias is now a Category 2 storm, the first hurricane in the Atlantic basin this year. Forecasters are warning of heavy rain, damaging winds, flooding, storm surge and the possibility of tornadoes. Amna Nawaz discussed the latest with National Hurricane Center Director Michael Brennan.