Florida teacher's union sues DeSantis over a new law that forces teachers to pay union dues through mail-in checks

• DeSantis signed a bill into law Tuesday that makes it harder for Florida teachers to stay in unions.
• Teachers now must mail in their dues every month instead of paycheck deductions.
• In response, the state's largest teacher's union sued. 

Florida's largest teacher's union sued Republican Gov. Ron DeSantis on Tuesday over a bill he signed into law that will require teachers who want to be in unions to mail in checks every month.