By: CNN Senior White House Correspondent Ed Henry

Washington (CNN) - Former Senate Majority Leader Bob Dole was in and out of Walter Reed Army Medical Center earlier this week because of an elevated temperature, but the former lawmaker disclosed Saturday that he has now been admitted to the hospital yet again after the fever returned.

In a written statement obtained by CNN, the 87-year-old Dole revealed that he was admitted to Walter Reed on Tuesday because of the initial fever.

"I was examined, treated and discharged Friday when everything looked clear," Dole said in the statement released by Alston & Bird, the law firm where he serves as special counsel. "After a recurrence of a fever I decided to stop by the George Washington University Hospital nearby then return to Walter Reed Friday evening for further examination."

Dole added, "Overall I feel good today and I am grateful for the tremendous care I have received and continue to receive at Walter Reed Army Medical Center."
The former senator spent about 10 months last year at Walter Reed recuperating from knee surgery. His stay was extended because of multiple bouts with pneumonia while he recuperated from the double knee replacement surgery.

After being badly wounded in battle during World War II, Dole was left with a paralyzed right arm and other major injuries. But he battled back to have one of the most illustrious careers in American political history, as a lawmaker known for his wisecracking nature and many bipartisan legislative victories in the House and Senate.