WASHINGTON ( CNN ) -- President-elect Barack Obama is planning to nominate at least three key members of his national security team at an event in Chicago , Illinois , on Monday , including Sen. Hillary Clinton as secretary of state , according to two Democratic officials . Sen. Hillary Clinton will be nominated to be Barack Obama 's secretary of state , sources say . The officials said Obama is also expected to confirm that he is keeping Defense Secretary Robert Gates in his current post and naming retired Marine Gen. Jim Jones as his national security adviser at the White House . The officials said that after much contemplation , Jones officially agreed to take the job in the past few days . All of the selections are hardly a surprise after weeks of fevered speculation . In fact , they 're such an open secret that retiring Republican Sen. John Warner , a veteran member of the Armed Services Committee , released a statement Saturday night praising all three nominees before they have been officially named at Monday 's rollout . `` The triumvirate of Gates , Clinton and Jones to lead Obama 's 'national security team ' instills great confidence at home and abroad and further strengthens the growing respect for the president-elect 's courage and ability to exercise sound judgment in selecting the 'best and the brightest ' to implement our nation 's security policies , '' Warner said .
President-elect to name key members of security team , Democratic officials say . Obama to keep Robert Gates as defense secretary , sources say . Retired Gen. Jim Jones to be named national security adviser .