The sprawling Texas megacity was taking tentative steps back to normalcy after a week of acute flooding that damaged 40,000 to 50,000 homes and sent tens of thousands fleeing to emergency shelters.
The White House has asked Congress for USD 7.85 billion for Harvey-related "response and initial recovery efforts," calling it a "down payment" on the long-term cost of recovering from the record flooding.
Harvey has been blamed for at least 42 deaths thus far and tens of billions of dollars of damage.
At the city's Convention Center, which was turned into a shelter for thousands at the peak of the crisis, University of Houston cheerleaders shaked pom-poms and the school's furry cougar mascots stopped by to lift the spirits of evacuees.
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"We're here to hang out with the kids, to cheer people up," said one of the students in the group, as evacuees waiting in line for federal aid vouchers waved and took photos.
The president is returning to Texas for his second visit since the megastorm hit, and will also visit neighboring Louisiana later in the day.
Trump on Tuesday stopped in the coastal city of Corpus Christi and the state capital of Austin, after which he tweeted that he witnessed "first hand the horror & devastation caused by Hurricane Harvey" -- though he did not, in fact, tour any flooded areas or meet with any victims.
And as floodwaters receded in Houston, nearby cities such as Beaumont -- which had lost its water supply -- and Port Arthur struggled to recover.
One week after Harvey slammed into southeast Texas as a Category Four hurricane, rescuers were still out searching for people still inside flooded homes.
The White House's request for nearly USD 8 billion in emergency storm aid -- made in a letter late yesterday to House Speaker Paul Ryan -- was USD 2 billion more than what the White House was expected to request, suggesting a rapid rise in needed funding as the scale of the disaster becomes clear.