Texas and Louisiana are in the lead on sigs, Each petition needs 25,000 sigs in 30 days from creation, then the white-house must acknowledge the petition and discuss it.

To see all the petitions: https://petitions.whitehouse.gov/petitions

To see the Texas petition: https://petitions.whitehouse.gov/petition/peacefully-grant-state-texas-withdraw-united-states-america-and-create-its-own-new-government/BmdWCP8B