Two Obama administration officials at the center of the investigation into Hillary Clinton's use of a private email server while secretary of state are set to testify before Congress over the next week.

FBI Director James Comey and Attorney General Loretta Lynch are sure to be met with fury from Republicans when they respectively appear before the House Oversight Committee and the House Judiciary Committee. GOP lawmakers have reacted with a mix of disbelief and outrage to Comey's Tuesday announcement that his agency had concluded its monthslong investigation into Clinton's email practices.

The director said that while Clinton and her staff had been careless, their actions had not crossed the line into criminality.

"The FBI's recommendation is surprising and confusing. The fact pattern presented by Director Comey makes clear Secretary Clinton violated the law," Oversight Committee Chairman Jason Chaffetz, R-Utah, said in a statement announcing that Comey would appear before his panel Thursday morning. "Congress and the American people have a right to understand the depth and breadth of the FBI's investigation."

Judiciary Committee Chairman Bob Goodlatte, R-Va., said Lynch is scheduled to testify before his committee on Tuesday, though her appearance had been previously planned.

"No one is above the law and the American people need to know that federal law enforcement is taking this misconduct seriously," Goodlatte said in a statement, noting that the hearing would also cover the recent terrorism-linked mass shootings in San Bernardino, California, and Orlando, Florida. The FBI's decision not to recommend charges against Clinton, he said, "raises serious concerns" and is "uniquely troubling in light of Attorney General Lynch's secret meeting with former President Bill Clinton ."

House Speaker Paul Ryan said on Tuesday the decision by the FBI "defies explanation." And Wednesday, Ryan called for Director of National Intelligence James Clapper to bar Clinton from receiving the classified briefings that are typically given to presidential nominees.

"After the convention, you get the full, deep classified information," Ryan said . "I think the DNI, Clapper, should deny Hillary Clinton access to classified information during this campaign given how she so recklessly handled classified information."