Former President Donald Trump decided to lavish praise on "wheels and walls" at an event near the Texas border.

While speaking to a crowd in Edinburgh, Texas, on Sunday, Trump claimed that "our country is going to hell."

"And nobody really knows the answer because who could object to voter ID? Who could object to a wall?" he asked. "I was saying before wheels and walls. They work. Wheels and walls. Everything else gets old and tired and obsolete very quickly."

Trump said mobile phones were an example of something that becomes obsolete quickly.

"Everything," he continued. "But wheels and walls, they work. And we don't need the wheels, we just need the walls. And it worked. So we had the safest border in our history."