DFL Senate candidate Mike Ciresi says he believes Republican Senator Rod Grams' campaign is behind a series of negative e-mails about Ciresi. The Minneapolis trial lawyer is asking the Anoka County attorney to investigate whether the e-mails - sent to DFL activists under the name "Katie Stevens" - violate state campaign law, which requires campaign materials to disclose who sent them. Grams won't say whether he knew anything about the e-mails. Minnesota Public Radio's Laura McCallum reports.