Jack Bergeson, age 17, has paid the $2,207 filing fee to qualify for the Democratic primary ballot. He is running for Governor of Kansas. He is the first person to have filed for the 2018 race for Governor, in either major party primary. Here is his web page.
Here is a link to the Kansas Secretary of State’s list of primary candidates for 2018 for all federal and state offices.
I think he’s making a mistake by limiting contributions to $500. It’s a nice though by that’s not a lot of money.