Democratic sources: Smith to replace Franken

ST. PAUL, Minn.- A Democratic operative with knowledge of the appointment says Minnesota Gov. Mark Dayton has chosen Lt. Gov. Tina Smith to fill Sen. Al Franken's seat until next year's election - and Smith will run in that election to complete Franken's term through 2020.The operative spoke on condition of anonymity because the operative wasn't authorized to speak ahead of an official announcement, scheduled for 10 a.m. Wednesday in St. Paul.A senior Democratic aide in the Senate also confirme