Clinton emails endangered US: Trump

US Republican presidential hopeful Donald Trump said on Wednesday Hillary Clinton's use of private email had put the "entire country in danger".

The FBI's decision not to recommend criminal charges against Democratic presidential hopeful Clinton is the greatest example yet that the system is rigged, BBC reported.

Clinton and Trump were their party's likely choices to battle for the White House in November. They are expected to be made the official nominees later this month.

Clinton had been careless in how she handled sensitive information but there was no case to bring criminal charges because there was no evidence of intent, FBI Director James Comey said.

Trump disagreed and said the system had been set up to protect the Clintons -- she had put the "entire country in danger" and had probably been hacked.

"Her judgment is horrible," Trump said, adding that "she will be such a lousy president, folks."

The New York businessman said Attorney General Loretta Lynch had been bribed, being promised she would keep her job in return for allowing Clinton to escape prosecution.

Trump offered qualified praise for former Iraqi leader Saddam Hussein.

"Saddam Hussein was a bad guy," Trump said. "But you know what he did well? He killed terrorists. He did that so good. They didn't read them their rights," he added.

Other Republicans were also critical of the FBI decision. House Speaker Paul Ryan said it "defied explanation".

"Declining to prosecute Clinton for recklessly mishandling and transmitting national security information will set a terrible precedent," he said.

At a press conference in March 2015, Clinton acknowledged that she had exchanged about 60,000 emails from her private account during her stint in the Obama administration, among which about half were personal and thus deleted.

In response to requests from the State Department, the Clinton camp turned over the other half, roughly 30,000 emails in total, to the State Department in December, 2014.