KANSAS CITY, Mo. — A video from a campaign event this week showed Katie Sawyer, a Republican candidate for Kansas lieutenant governor, laughing after a man suggested that Gov. Laura Kelly should “change the lock on her office door” during a discussion about transgender athletes. In the video obtained by The Kansas City Star, Sawyer, Kansas Attorney General Derek Schmidt’s running mate, was seen speaking in a room full of constituents at a Republican candidate forum in Marion on Wednesday. Sawyer criticized Kelly, the incumbent Democrat, for vetoing a Republican-led proposal that would havebann…