From CNN's "Capital Gang" Stephanie Herseth, Democrat congressional nominee in SD, is leading the Republican challenger, Larry Diedrich, 49-40 (Argus-Leader survey), as the campaign to select a successor to former Rep. William "Bill" Janklow, R-SD, enters its final ten days. However, Diedrich has improved his poll numbers, after campaign visits by Speaker Dennis Hastert, R-IL, First Lady Laura Bush, and Second Lady Lynne Cheney. An issue dividing the two is abortion: Herseth opposes partial-birth abortion but would allow "exceptions," a position Republicans insist mean that she is really in support of partial-birth abortion, a procedure that the American Medical Assn....