MILES O’BRIEN:

We have spent a lot of time covering people who have gone to shelters for aid and relief, but there are a number of immigrants in the Houston community who are nervous about getting that help.

Today, a controversial law in Texas was set to take effect. It would crack down on so-called sanctuary cities like Houston that don't always cooperate with federal authorities.

A federal judge blocked much of the law, but Governor Greg Abbott and the state's attorney general have vowed to appeal.

Some immigrants feel targeted.

The NewsHour's P.J. Tobia has our report.