Brian J. Tumulty

USA TODAY

Republicans were quick to respond Saturday to news that Hillary Clinton spent the morning at FBI headquarters being questioned by investigators who are looking into whether her use of a private email account and a home-based computer server while serving as secretary of State compromised classified information.

"FBI should have read Clinton her Miranda rights and taken her into custody,'' tweeted conservative radio talk show host Mark Levin.

Clinton's spokesman Nick Merrill described the meeting as "voluntary,'' which drew jeers from conservative pundit Bill Kristol, editor of the Weekly Standard, who wrote on Twitter, "FYI, I gave a 'voluntary interview' the other day to a policeman who pulled me over for (alleged!) speeding on the way home.''

"It is impossible for the FBI not to recommend criminal charges against Hillary Clinton,'' Donald Trump wrote on his Twitter account. "What she did was wrong! What Bill did was stupid!''

FBI agents interviewed Hillary Clinton, now what?

Trump also was referring to former President Bill Clinton's impromptu meeting Monday with U.S. Attorney General Loretta Lynch at Phoenix's Sky Harbor International Airport when he boarded her government plane. Lynch said Friday the meeting had "cast a shadow'' over the investigation. "This case will be resolved by the team that has been working on it from the beginning,'' she announced.

A half hour later a disgusted Trump tweeted, "It was just announced-by sources-that no charges will be brought against Crooked Hillary Clinton. Like I said, the system is totally rigged!''

Republican National Committee Chairman Reince Priebus issued a statement saying, "The American people need to have confidence that the Obama Justice Department is conducting a fair and impartial investigation, but when the attorney general meets secretly with Bill Clinton just days before Hillary’s interrogation is conducted discreetly over a holiday weekend, it raises serious concerns about special treatment. Others have lost their security clearances, their jobs, or even gone to jail for doing far less, and Clinton needs to be held to the same standard as everyone else.

"In over 2,000 emails, Clinton's decision exposed classified information, including 22 that included top secret intelligence, just so she could skirt transparency laws in order to hide her shady dealings as Secretary of State," Priebus said. "When you factor in Clinton directed this server be established to cover up the tangled web of donors, State Department actions and her family foundation, we must ask ourselves if this is the kind of leadership we want in the White House.''