Former Speaker of the House and Republican presidential candidate Newt Gingrich talks to FOX News' Greta van Susteren about the affect of Hillary Clinton's private server controversy on her campaign for the presidency.



Gingrich predicted the former Secretary of State will not be the Democratic nominee and that Republicans "should worry" about Vermont Sen. Bernie Sanders instead.



Gingrich said he wouldn't be surprised if Michael Bloomberg, Jerry Brown or Elizabeth Warren jump in the race if it looks like Hillary Clinton will implode.



"If Hillary starts to implode you will see a vacuum that you have not seen in many, many years," he said.



Gingrich suggested current Secretary of State John Kerry may take another stab at the presidency, after he collects his Nobel Peace Prize for the Iran deal.



The former Speaker of the House believes President Obama will not protect Clinton if the private server investigation yields criminal behavior. There would be "no love lost" between the two, Gingrich told van Susteren.