Sen. Joe Biden accused the McCain campaign of sequestering Gov. Sarah Palin "and challenged her Sunday to sit for network interviews," according to Politico.
Said Biden: "She's a smart, tough politician. So I think she's going to be formidable. Eventually, she's going to have to sit in front of you like I'm doing and have done. Eventually, she's going to have to answer questions and not be sequestered. Eventually, she's going to have to answer on the record."
Meanwhile, in an interview on This Week, Sen. Barack Obama suggested Palin was not qualified for the job.