A Texas secessionist warned the United States that Alex Garland's Civil War was "pouring gasoline on the fire" of "Texit" arguments, as he renewed calls for a referendum on the Lone Star State's split from the union.

A leading Texas nationalist group has warned Mexican President Andrés Manuel López Obrador it will begin actively supporting secessionist movements in his country in response to what it argues is his failure to control illegal migration into the Lone Star State.

A leading Texas independence campaigner has said the United States is "breaking apart," with over 50 percent of the population in 25 states ready to secede based on his interpretation of two recent surveys by the polling company YouGov.