WASHINGTON (AP) -- The baseball star, the Hollywood 10, Oliver North. And Lois Lerner of the IRS.
The official enmeshed in a probe of the tax agency is the latest on a roll call of witnesses brought before Congress who refused to answer lawmakers' questions.
A few well-known names who invoked Fifth Amendment protections against self-incrimination:
White House gate crashers Michaele and Tareq Salahi declined to tell lawmakers in 2010 how they sailed past the Secret Service to attend President Barack Obama's first state dinner uninvited.
They were shadowed to the dinner by a film crew for the TV show "Real Housewives of D.C." Mrs. Salahi became a regular and also appeared on "Celebrity Rehab."
The Salahis have since divorced; last year she became engaged to rock guitarist Neal Schon of Journey.
Neither of the Salahis faced criminal charges for party crashing.
Former St. Louis Cardinals slugger Mark McGwire, one of the biggest stars of baseball, wouldn't answer questions at a 2005 hearing on steroid use.
He was asked again and again: Did he use illegal steroids to hit a then-record 70 home runs in 1998?
Choking back tears at times, McGwire said his lawyers advised him not to answer. "I'm not here to talk about the past," he said.
Years later, McGwire acknowledged use of steroids and human growth hormone.
Lobbyist Jack Abramoff invoked the Fifth Amendment at a 2004 hearing about his suspicious dealings and exploitation of Indian tribes with casinos.
Senators' accusations of "greed run amok" blossomed into a giant bribery and influence-peddling scandal that led to more than 20 convictions of lobbyists, lawmakers, congressional aides and others.
After serving a 3
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