Plattner held a news conference Monday afternoon, March 21, at Stone Hedge Golf Club in Marshall.
Plattner acknowledged the announcement was not a big surprise. She has said for several years that she planned to run for the post. She was on the ballot for the job in 2008, though she said that effort was mainly intended to get her "foot in the door."
Plattner's resumé includes a number of local and state government roles, from city clerk and city council member to her current post as chairwoman of the Missouri Conservation Commission. She served for eight years as Saline County presiding commissioner.
Her two terms in county government provided her with some of the most relevant experience to the job of lieutenant governor, she said, noting that the jobs both include listening to constituents and helping them solve problems.
She also noted that the main duties of the lieutenant governor line up well with her areas of experience and knowledge, including promotion of agriculture, tourism, veteran services, volunteerism and senior services.
Although the election is still 20 months away, Plattner said she would spend the time introducing herself to voters around the state, and she said she plans to spend time in Jefferson City watching and learning about the day-to-day workings of state government.
Plattner is a full-time student at Missouri Valley College, but she said her schedule was arranged so she is on classes on campus two days, giving her more time to work on her campaign and observe the legislature.
Plattner was surrounded by friends, family members and supporters at the news conference. She introduced her daughters, Michaela and Jamie Orear. Michaela, 23, is a student majoring in conservation enforcement at the University of Central Missouri. Jamie, 29, is a youth specialist at Waverly Regional Youth Center.
She also introduced her treasurer, Tyler Bargfrede of Alma, and her public relations advisors, Sally Poole and Pam Thomeczek.
"Both my daughters are very supportive of this," she said. "They've lived it with me since ... actually since they were born. I was a city clerk and councilman in a small town."