Abedin is being investigated for a wide variety of charges of criminal behavior. So Grassley has been inquiring on several of those activities for several years, without getting a response. The Inspector General (IG) of the State Dept has called into question money Abedin was paid during her maternity leave and during a vacation to Italy and France.
Abedin and her lawyers claim that she worked during both breaks from her service. That seems highly unlikely to me.
Why take a plane to Italy and France just to pay for an expensive hotel room if you are working? You could do that from any Motel 6 in the country. The fact that they are unwilling to divulge any information on either seems suspicious, don’t you think?