A news host on Sunday was shocked to see Donald Trump's polling dropping significantly when it comes to the "only number" the president actually cares about.

On MS NOW over the weekend, host Jonathan Capehart was stunned to see Trump drop substantially when it comes to his support among Republicans, as opposed to his overall approval numbers.

"If you look at the latest Gallup poll... I say when you look at those overall poll numbers, you've got to go and look at his Republican approval rating because that is the only number he cares about," he said. "In this poll, it's interesting, Donald Trump's approval rating has fallen among Republicans seven percentage points since like a month ago."

Capehart added, "He still has overwhelming support, but that kind of erosion we have never seen."

Another analyst jumped into say, "And it's going to keep happening."