Twelve Democratic members of Congress have filed a lawsuit against the Trump administration, accusing it of unlawfully obstructing their efforts to visit federal immigration detention centers.

The 12 Democrats accused the Trump administration of violating the law when it turned them away from immigrant detention sites and imposed a new policy limiting congressional access.

A dozen members of Congress who have been blocked from making oversight visits at immigration detention centers are suing the Trump administration to ensure they are granted entry into the facilities,