Former Gov. George Pataki slammed Democratic candidate Hillary Clinton about her email on Twitter Monday. Getty Images

Former Gov. of New York City and Republican presidential candidate George Pataki lambasted Democratic candidate Hillary Clinton in a tweet Monday for using her private email account while performing her duties as secretary of state. Even though she has turned over her email server, Clinton was still receiving criticism because the White House and State guidelines prevent government officials from sharing classified information on their private accounts.

The U.S. Justice Department has been asked to open an investigation into the possibility that information was compromised during her tenure from 2009 through 2013, the New York Times reported Thursday. Initial reports misstated that Clinton was being criminally investigated, and the Times consequently issued a correction.

“I want to say a word about what's in the news today. And it's because there have been a lot of inaccuracies, as Congressman Cummings made clear this morning,” Clinton said Friday in New York at the beginning of a speech on the economy. “Maybe the heat is getting to everybody. We all have a responsibility to get this right.”

But Pataki still felt Clinton should be held more responsible. He denounced Clinton's implementation of her private email, tweeting, "Every 'grandmother with two eyes and a brain' knows storing sensitive classified information on a home server is dangerous @HillaryClinton."

While Pataki may be running on a more centrist platform, he has not held back when it comes to his contempt for the former secretary of state. He jibed at the Hillary and husband Bill Clinton's attempts to appeal to the middle class during his May presidential-run announcement, reported the New York Times.

“We are the party of the middle class – unless by ‘middle class,’ they mean someone who left the White House dead broke and 10 years later had $100 million,” Pataki said. “Unless by ‘middle class,’ they mean someone who charges a poor country $500,000 for a half-hour speech.”

Pataki continued, adding: “[Hillary] speaks for the middle class? They are the party of privilege. We are the party of the middle class.”