In the case of Senator McCain, his secret service protection was gone overnight. He was photographed the next morning driving his Toyota SUV out of a hotel garage with Senator Graham- no protection in sight. Senator Clinton did not lose SS protection when she withdrew due to her status as a former first lady.
President Clinton is the last president to have lifetime protection from the secret service. Every president after him will only have secret service protection to 10 years. In 2013, President Obama signed legislation restoring Lifetime Secret Service protection to former Presidents.
In the President's Secret Service has 288 pages.
The secret service.
In the President's Secret Service was created on 2009-08-04.
Secret service
President Barack Obama's secret service codename is Renegade.
The Secret Service
The sole purpose of the Secret Service agents are to protect the president. Whoever protects them is irrelevant and quite frankly not needed. People don't plan assassination to kill Secret Service agents, because of how quick people can act. With only 1 (maybe 2) shot, you need to kill the most important figure there, which is usually the president.
The Secret Service code name for Frank Sinatra was Napoleon.
Secret service agents are trained to take a bullet for the President if necessary.
The Secret Service
I am not sure I understand your question. The secret service is a constant presence in the life of any president. Whenever the president is out in public, he is always protected by the secret service. The inauguration on January 21, 2013 was conducted outside, and members of the secret service provided their customary protection for President Obama and his family.