Texas Sen. John Cornyn, accusing the White House of compiling an "enemies list," has asked President Barack Obama to stop an effort to collect "fishy" information Americans see about a health care overhaul. Cornyn, who leads the Republicans' Senate campaign effort, said Wednesday in a letter to Obama that he's concerned that citizen engagement on the issue could be "chilled." He also expressed alarm that the White House could end up collecting electronic information on its critics. "I can only imagine the level of justifiable outrage had your predecessor asked Americans to forward e-mails critical of his policies to the White House," Cornyn wrote.