Emboldened by Brexit, U.S. secessionists in Texas are keen to adopt the campaign tactics used to sway the British vote for leaving the European Union and are demanding "Texit" comes next.

The citizen-driven vote in Britain can be a model for Texas, which was an independent country from 1836 to 1845, and its $1.6 trillion a year economy would be among the 10 largest in the world, said Daniel Miller, president of the Texas Nationalist Movement.

"The Texas Nationalist Movement is formally calling on the Texas governor to support a similar vote for Texans," the group said on Friday. The office of Texas Gov. Greg Abbott was not immediately available for comment.