Donald Trump's latest "low-energy" event revealed that he is "fading," according to a former GOP strategist.

Trump on Tuesday gave a rally in Pennsylvania in an attempt to convince voters he's a good steward of the economy. But it actually had a backfire effect by reminding citizens about the president's failing cognitive health, according to former Republican analyst Mike Murphy.

Murphy, the co-host of the political podcast Hacks on Tap along with Democratic strategist David Axelrod, made the observation early on Wednesday morning.

"A few hours after we discussed on [Hacks On Tap] why Trump has cut back rallies so much, it was pretty evident at his event today in PA just why," he wrote. "Meandering, more confusion and mental weakness than usual."

Murphy added, "Even a bit shall we say, low-energy. Weaker optics too. He’s clearing fading."