Sen. Bill Nelson on Monday joined Democratic calls for gun restrictions following the tragedy in Texas.

"Regardless of motive or mental state – enough is enough!' Nelson wrote on Twitter.

On Sunday, Rep. Debbie Wasserman Schultz was more explicit.

"My heart aches for the families of those impacted in Texas. In a place of worship, prayer, and healing, Americans should not have to fear for their lives," she said in a statement.

"We experience deadly mass shootings disturbingly, more and more often in this country. Yet, there still has been no action to make sure people who shouldn't have guns can't get them.

"Nothing has been done to keep weapons of war off our streets or even to allow research on gun violence. The president and the Congressional majority are failing our country and our people."

But there is unlikely to be much legislative action. Attempts fizzled out after the Las Vegas shooting and President Donald Trump on Sunday said the issue in Texas is one of mental health.