When Hillary Clinton ran in 2008 against a first-term, unproven senator, she claimed to be the adult in the race, asking voters who they would rather have answer the White House phone at 3 a.m. to face an international emergency.
"I think Benghazi was a 3 a.m. phone call that she never picked up," Kentucky Sen. Rand Paul said, referring to the night in 2012 that four Americans, including the U.S. ambassador, were slain by Islamic terrorists in Libya.
"She didn't provide the security, not just that day, for nine months. Dozens and dozens of requests for more security, all completely ignored by Hillary Clinton," Paul said on CNN.
The GOP candidate also questioned Hillary's destruction of emails and her foundation's acceptance of donations from foreign countries. "There is a history of the Clintons feeling they are above the law," he said the "State of the Union" program.
"They said they were not going to take donations for the Clinton Foundation during the period of time she was Secretary of State, and there are questions whether they did," Paul said. The foundation has not released its full list of donors.
Before Hillary made the announcement on Sunday, former Florida Gov. Jeb Bush criticizing her handling of U.S. foreign policy as Secretary of State.
"We must do better than the Obama-Clinton foreign policy that has damaged relationships with our allies and emboldened our enemies," Bush said in a video released by the political action committee Right to Rise.
Noting that President Obama has endorsed Hillary, saying she would make an "excellent president," former Arkansas Gov. Mike Huckabee said she'll have to "explain how she’s not going to be Obama’s third term."
South Carolina Republican Sen. Lidsey Graham stuck to her foreign policy record. "She empowered a failed foreign policy,” adding she'll need to "make a case that she’s different” from Obama. "The reason why 20 Republicans are running is all of us think we can beat her."
Mitt Romney, who has ruled out a 2016 run, also got in on the criticism, echoing Paul’s theme that she “is just not trustworthy.”
“This whole story about her having erased all of her emails even though they were subject to recall and review by Congress … I think that’s made people remember that with the Clintons it’s always something,” Romney said before criticizing Hillary Clinton’s years in Washington as secretary of State, U.S. senator and first lady.
“She’s been there a long time. She’s a creature of Washington,” Romney said. “I think people want to see change, want to see something new and Hillary Clinton is just not that person.”