Housing and Urban Development Secretary Alphonso Jackson announced Monday he was resigning after seven years on the job.
Jackson, 62, is under criminal investigation and has been fending off allegations of cronyism and favoritism involving HUD contractors for the past two years.
He also was under intense pressure from Democrats to resign.
The FBI has been examining the ties between Jackson and a friend who was paid $392,000 by Jackson's department as a construction manager in New Orleans after Hurricane Katrina.Jackson said he needs time to attend to personal and family matters.
He did not take questions or elaborate on the family reasons he cited for the decision.
Jackson resigns at a time when nation's housing industry is in a crisis so serious that it has imperiled the nation's credit markets and led to a major economic slowdown.
The Seminal points out that this is the last of the Bush Texas cabal to leave.