The White House will ask Congress for emergency funding to help those affected by Hurricane Harvey.
Vice President Mike Pence said during a visit to Texas that they would be there every day until the city and the state and the region rebuild bigger and better than ever before.
US President Trump is expected to propose an initial $USD5.9bn in aid.
Texas Governor Greg Abbott said earlier the state might need more than $USD125bn from the federal government.
At least 33 people have died in the storm and its aftermath.
Pence said 311,000 people had registered for disaster assistance, and that he hoped for bipartisan support in Congress for the funding request.
It is not yet clear how quickly funds might reach victims.
Source: BBC