Source: United States of America – Federal Government Departments (video statements)
On May 7, TSA will no longer accept state-issued identifications that are not REAL ID compliant at TSA security checkpoints. All airline passengers 18 years and older, including TSA PreCheck® members, must present REAL ID-compliant identification or another acceptable ID, such as a passport, at TSA security checkpoints. Noncitizens illegally present in the U.S. who are voluntarily self-deporting on international flights will not be denied boarding under this requirement.
Passengers who present a state-issued identification that is not REAL ID compliant and who do not have another acceptable alternative (e.g., passport) can expect to face delays, additional screening and the possibility of not being permitted into the security checkpoint.
Acceptable Identification at the TSA Checkpoint | Transportation Security Administration
The TSA Identification Requirements page outlines acceptable forms of ID for travelers at airport security checkpoints.