It is unclear what resources the FBI is investing or how it is approaching the situation as there is no apparent legal breach under its purview.

Earlier this week, an administration official told NBC News that there were no plans to use federal agents to arrest Texas lawmakers who left the state.

The move to flee the state is part of a tactic to block a vote in the Texas House on redistricting. The proposal by Republicans would create five more Republican-leaning seats in the US House of Representatives, where the party holds a slim majority.