IG Michael Horowitz is set to testify before two Senate committees 

Senate Judiciary probe is on 'examining' the IG's report 

 Horowitz has spent months investigating the FBI's handling of election probes

The testimony likely indicates his report will be completed by then 

 House Republicans girding to interview FBI officials who handled Clinton email probe

A highly anticipated report by the Justice Department's Inspector General could be made public within days, as a pair of congressional panels prepare for hearings on how the FBI handled the Hillary Clinton probe.