CNBC's Jim Cramer on Monday suggested that President Donald Trump stop targeting Federal Reserve Chairman Jerome Powell and let the chief carry out his current monetary policy plan.

In a

tweet on Sunday, Trump doubled down, again, on his criticism of Powell in the wake of the Federal Open Market Committee's move to raise the benchmark funds rate to a range of 2.25% to 2.5% last December.

"Memo to the President: Powell stopped tightening, he's doing what you want — take yes for an answer," the "Mad Money" host said.

Cramer, who was also once critical of the Fed chair, has warmed up to Powell since he canceled plans to hike rates in 2019 for a "patient" approach. The host called the rate increase a "rookie mistake."

The Fed put a hold on rate increases in part because of slowing growth in the global economy. As investors and analysts worry that a recession could be looming, Cramer said he is not convinced.

"I'm not saying the economy's in great shape. The point I'm making is that it's foolish to view the inverted yield curve — the fact that some short-term interest rates are now higher than some longer-term rates — as a harbinger of recession," he said. "We only have an inverted yield curve because the Fed mess up when it tightened in December. They know the situation is fragile, so I think they'll stay on hold."

As the economy remains relatively healthy, he said there are a number of warning signals that would hold the Federal Reserve back from being hawkish again in the near future.

Cramer gives seven reasons why here

Alex Wong | Getty Images

Amazon CEO Jeff Bezos, founder of space venture Blue Origin and owner of The Washington Post, participates in an event hosted by the Air Force Association September 19, 2018 in National Harbor, Maryland.

Investors should factor the Amazon effect into their stock-picking homework because the company is a "Death Star" that could disrupt any industry it decides to set its gaze on, Cramer said.

"Any company with any kind of consumer product could potentially end up in their crosshairs, and that's a very dangerous place to be," the "Mad Money" host said.

The Amazon effect continues to have a daunting impact on most brick-and-mortar retailers, and the entertainment industry could be next in its path. Spotify has become a dominant name in the audio world by offering both free, ad-supported and subscription models for streaming music. It is also making a mark in the exceedingly popular podcasts segment.

But shares of the streaming platform ended Monday down 4.4% on news that Amazon could release a free music streaming service on its Echo device as soon as next week.

"Now that we know [Amazon's] interested, Spotify's stock will never trade the same way again ... Amazon has a huge installed based of 100 million devices that could easily make this service work, destroying Spotify's moat [and] potentially turning it into an absolute also-ran in its own industry," Cramer said. "I think Amazon could do just about anything it sets its mind to right now."