Updated 1:02 p.m. ET Dec. 13: Sen. Al Franken said Minnesota Lt. Gov. Tina Smith “will make an excellent United States Senator” after she was announced Wednesday as the Democratic congressman’s replacement. Minnesota Gov. Mark Dayton named Smith as Franken’s replacement after the senator announced his intention to resign. He has not set a date for his resignation. Dayton said Wednesday that Smith will serve a one-year term ending in January 2019. Franken said Smith, who became lieutenant governor in 2015, will “be an effective senator who knows how to work across party lines to get things done for Minnesota.” “I look forward to working with her on ensuring a speedy and seamless transition,” he said. Updated 11:07 a.m. ET Dec. 13: Minnesota Gov. Mark Dayton announced Wednesday that the state’s lieutenant governor, Tina Smith, will fill the U.S. Senate seat currently held by Sen. Al Franken. Franken announced his intent to resign earlier this month after multiple women came forward to accuse the Democrat of sexual misconduct. In a statement, officials said Smith will serve a one-year term in the Senate before Minnesotans go to the polls to chose Franken’s replacement. Original story: Minnesota Lt. Gov. Tina Smith will be appointed to fill the U.S. Senate seat of fellow Democrat Al Franken, the Star Tribune and Minnesota Public Radio are reporting. >> PREVIOUS STORY: Al Franken will resign amid allegations of sexual misconduct Gov. Mark Dayton will announce Smith's appointment at a news conference Wednesday morning, the outlets reported, citing unnamed sources familiar with the decision. >> PREVIOUS STORY: Al Franken: What happens to his Senate seat if he resigns? Both outlets reported that Smith, 59, also will vie for the seat in the November 2018 special election. The news comes less than one week after Franken announced he'd be resigning amid sexual misconduct allegations. >> Read more trending news From 2003-2006, Smith, a New Mexico native who has lived in Minnesota since 1984, was vice president of external affairs for Planned Parenthood Minnesota, North Dakota and South Dakota. She also was chief of staff for Minneapolis Mayor R.T. Rybak and Dayton before becoming lieutenant governor in 2015. – The Associated Press contributed to this report.