Catastrophic floods strike Houston; thousands flee homes Two people walk down a flooded section of Interstate 610 in floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)
The Latest: More Texas counties declared disaster areas Wilford Martinez, right, is rescued from his flooded car by Harris County Sheriff's Department Richard Wagner along Interstate 610 in floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)
Water 'is swallowing us up': Catastrophic floods hit Houston Two kayakers try to beat the current pushing them down an overflowing Brays Bayou from Tropical Storm Harvey in Houston, Texas, Sunday, Aug. 27, 2017. (Mark Mulligan/Houston Chronicle via AP)
Water 'is swallowing us up': Catastrophic floods hit Houston Two kayakers try to beat the current pushing them down an overflowing Brays Bayou from Tropical Storm Harvey in Houston, Texas, Sunday, Aug. 27, 2017. (Mark Mulligan/Houston Chronicle via AP)
Rescuers pluck hundreds from rising floodwaters in Houston Two people walk down a flooded section of Interstate 610 in floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)
Texas gov praises Harvey response; Trump meets and tweets Wilford Martinez, right, is rescued from his flooded car by Harris County Sheriff's Department Richard Wagner along Interstate 610 in floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)
Water 'is swallowing us up': Catastrophic floods hit Houston Two kayakers try to beat the current pushing them down an overflowing Brays Bayou from Tropical Storm Harvey in Houston, Texas, Sunday, Aug. 27, 2017. (Mark Mulligan/Houston Chronicle via AP)
Texas gov praises Harvey response; Trump meets and tweets Wilford Martinez, right, is rescued from his flooded car by Harris County Sheriff's Department Richard Wagner along Interstate 610 in floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)
Texas teams' plans upended by Hurricane Harvey A pedestrian crosses a street inundated by floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)
Texas teams' plans upended by Hurricane Harvey A pedestrian crosses a street inundated by floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)
The Latest: Coast Guard rescuing people by helicopter A pedestrian crosses a street inundated by floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)
The Latest: Coast Guard rescuing people by helicopter A pedestrian crosses a street inundated by floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/Charlie Riedel)
Rescuers pluck hundreds from rising floodwaters in Houston Two people walk down a flooded section of Interstate 610 in floodwaters from Tropical Storm Harvey on Sunday, Aug. 27, 2017, in Houston, Texas. (AP Photo/David J. Phillip)
Water 'is swallowing us up': Catastrophic floods hit Houston Two kayakers try to beat the current pushing them down an overflowing Brays Bayou from Tropical Storm Harvey in Houston, Texas, Sunday, Aug. 27, 2017. (Mark Mulligan/Houston Chronicle via AP)
