President Trump and his wife Melania are looking at "different options" to make personal donations to the relief effort underway for the southeastern United States ravaged by the storm formerly known as Hurricane Harvey.

White House press secretary Sarah Sanders told reporters on Wednesday that she hasn't gotten anything back yet on fulfilling her promise to ask whether the president or the first lady had made a personal donation to hurricane relief.

"No," she said while travelling back to Washington, D.C., from Missouri on Air Force One. She added, "I know they're looking into some different options."

The Trumps visited storm-stricken Texas on Tuesday, which is now dealing with the after effects of the diminished storm, including widespread flooding.

"We want to do it better than ever before," Trump said Tuesday during a briefing on Hurricane Harvey relief efforts in Corpus Christi, Texas. "We want to be looked at in five years and 10 years from now as, this is the way to do it. This was of epic proportion. No one has ever seen anything like this."

Trump has approved a major disaster declaration for Texas and declared a state of emergency for Louisiana, unlocking federal resources to help with storm-stricken areas. Congress will look at providing disaster relief funding when it is back in session next week.