On February 11, the Tennessee House passed HB 1727. It sets up a procedure for a previously unqualified party to get on the ballot in a special congressional or legislative election. It also lowers the vote test for a party that is only qualified in one county to remain on the ballot, from 20% to 5%. And it lowers the petition for a group that wants to be a party in just one county from 5% to 2.5%.
But it still retains the requirement that newly-qualifying statewide parties must submit a petition of 2.5% of the number of votes in the last gubernatorial election, which is over 40,000 signatures. See this story.