Republican governors in half of the US have backed Texas in an intensifying standoff with the federal government over illegal immigration.
The Supreme Court ruled this week against Texas Governor Greg Abbott, who has strung razor wire along miles of the frontier with Mexico.
But the Republican has vowed to add more razor wire to crack down on what he calls an invasion.
A record 225,000-plus illegal migrants crossed the border in December alone.
On Thursday, 25 Republican governors released a joint statement of solidarity with Mr Abbott for “stepping up to protect American citizens from historic levels of illegal immigrants, deadly drugs like fentanyl, and terrorists entering our country”.
