The White House has said a change in the leadership at Fifa is an "opportunity" for the footballing body to improve its image.
In a statement, the office said Fifa would "benefit" from new leadership, following the resignation of incumbent president Sepp Blatter.
Ex-Fifa vice president Jack Warner has vowed to release an "avalanche" of secrets in an extraordinary television address in Trinidad.
A full transcript of the confession of shamed Fifa official Charles 'Chuck' Blazer has tonight been released by the US justice department.
A Fifa whisleblower has described Sepp Blatter as a 'diabolical genius' - but said Russia and Qatar should keep their World Cups.