The top Republican on the Senate Judiciary Committee said Thursday that the State Department and Huma Abedin, the wife of former congressman Anthony Weiner, have put up "a stone wall" in the face of his inquiry about her final months at the agency, and vowed to continue raising questions about Abedin's employment status.

"So far, the State Department and Ms. Abedin haven’t provided a single document that I requested," Sen. Charles E. Grassley (R-Iowa) said in a statement. "Putting up a stone wall raises a lot more questions about how the program is being used than it answers. I intend to pursue more complete answers to my questions."