Real IDs epitomize the poor decisions of a bloated, inefficient bureaucracy

The controversial Real ID officially goes into effect today .

It marks the end of a process that began 20 years ago as a national security response to the September 11 terrorist attacks.

Julian Zelizer : It took less time for President Donald Trump to go from game show host to president than it did for a government-mandated security measure, deemed necessary to help prevent terrorist attacks, to be implemented.

Zelizer asks: Why did it take over two decades to implement?.