The FBI is investigating after more than 80 letters were sent to Kansas lawmakers and other government officials. SIGN UP to get the daily GMA Wake-Up Newsletter: gma.abc/2Vzcd5j VISIT GMA: goodmorningamerica.com FOLLOW: TikTok: tiktok.com/@gma Instagram: instagram.com/GoodMorningAmerica Facebook: facebook.com/GoodMorningAmerica Twitter: twitter.com/gma #kansas #whitepowder #letters #lawmakers