Former Lieutenant Governor Tina Smith was sworn in today as Minnesota’s new U-S Senator, replacing Al Franken. Smith and Alabama Democrat Doug Jones took the oath together, administered by Vice President Mike Pence. A smiling Senator Amy Klobuchar was at Smith’s side. Former Vice President and Senator Walter Mondale was also there. Minnesota Senate President Michelle Fischbach becomes lieutenant governor — a Republican paired up with Democratic Governor Mark Dayton. Fischbach has said she intends to continue serving in the Senate at the same time. Democrats say that violates the Constitution and are threatening legal action.