Republicans also pressed for more background about two leading FBI officials, who were involved in both the Clinton and Trump probes, demanding more information about Peter Strzok and Andrew Weissman, who GOP lawmakers say expressed anti-Trump feelings to others inside the Justice Department, impacting both of those probes.
Tied into all of this is the contention of some in the GOP that the FBI wrongly used the controversial "dossier" put together about President Trump during the 2016 campaign - which the GOP says was paid for by the Democrats - and possibly funneled to the FBI for its use.
"I mean, there are all kinds of people on Mueller's team who are pro-Clinton," said Rep. Jim Jordan (R-OH), as some Republicans suggested a top to bottom review of key people in the Russia investigation to see if they are harboring anti-Trump sentiments.
During the over five hour hearing, Democrats asked Wray several times about President Trump's recent assertion that the FBI was in "tatters" after the stewardship of former Director James Comey.
"I am emphasizing in every audience I can inside the bureau, that our decisions need to be made based on nothing other than the facts and the law," Wray said.
But judging from the reaction at this oversight hearing - which could have covered any subject - the biggest concern for Republicans right now is pursuing allegations that the FBI was too lenient on Hillary Clinton, and too quick to investigate Donald Trump.