Florida’s largest medical-marijuana company filed a defamation lawsuit Wednesday accusing the state Republican Party of launching an “intentionally deceptive campaign” to mislead voters about a proposed constitutional amendment that would allow recreational use of marijuana. With voting by mail already underway in the Nov. 5 election, the lawsuit filed by Trulieve, Inc. — which has spent nearly $93 million on the recreational-marijuana initiative — also accused the owners of two Fort Myers-based television stations of running a “demonstrably false” ad “trying to fool Florida voters” into voting against what will appear on the ballot as Amendment 3.