NEW : ` The notion that somehow we 're engaging in nefarious tactics Obama says notion that he is engaging in nefarious tactics is `` hard to swallow '' but not impossible. Health care , NAFTA positions misrepresented , she says in Ohio . Obama camp says mailers are accurate .
NEW : Obama says notion that he is engaging in nefarious tactics is `` hard to swallow '' but not impossible. Health care , NAFTA positions misrepresented , she says in Ohio . Obama camp says mailers are accurate .