(CNN) - Newt Gingrich has been a relentless critic of President Obama, but he appears to carry a decidedly higher opinion of Secretary of State Hillary Clinton.
Appearing on Good Morning America Tuesday, the former speaker of the House whole-heartedly endorsed the Washington rumor that Clinton may succeed Robert Gates as Secretary of Defense.
"She is knowledgeable, she is tough, I think that she'd be a very aggressive defender of the military in terms of what it needs, its budgets and its concerns," Gingrich told ABC's George Stephanopoulos.
It has long been clear that Gates, a carryover from President Bush's administration, does not plan to remain at his defense post too much longer and some of speculated Clinton is the best choice to succeed him at the Pentagon.
"If she would take it she would be terrific," said Gingrich, before adding, "I'm not sure she would have quite as much fun…I think she probably would have an even better time being secretary of state."
For her part, Clinton has deflected questions about her interest in being Secretary of Defense, saying she enjoys her current position as the nation's top diplomat.
Gingrich in fact appears to be a fan of the entire Clinton family. Late last month, as massive congressional defeats appeared imminent, he advised President Obama to seek advice from former President Bill Clinton who went through a similar experience in 1994.
"Bill and Hillary Clinton had to go through a lot of thinking in the first six months of 1995," he told CNN. "It was painful, it was difficult, and President Clinton did a tremendous job on working with us on balancing the budget and cutting taxes."