White House Senior Adviser Valerie Jarrett today tried to dispel the notion that she has a greater-than-normal influence on President Obama.

"I am not the shadow chief of staff," she said during a breakfast interview with Politico's Ben White.

Jarrett added that most people assume that she is more influential because she has a separate social relationship with the president. The two are old friends from Chicago, and Jarrett has advised Obama since the beginning of his political career. Her influence over Obama had also been the subject of media speculation.

But when she socializes with the Obamas, Jarrett insisted, they don't talk about work.

She also indicated that she thoroughly enjoyed her job at the White House and would stay there as long as Obama wants.

"I serve at the pleasure of the president," she said. "I'll be there as long as he'll have me."