Donald Trump heralded his upcoming summit with Kim Jong Un and reiterated his belief that the North Korean leader would opt to dump his nuclear arsenal in exchange for economic riches.

Trump pushed his case on Monday for the total denuclearization of North Korea, predicting on the eve of his second summit with the North Korean that Kim would ultimately make the “wise decision” to end his nation’s nuclear program.

Despite appearing Sunday to temper expectations for his meeting with Kim later this week — telling state governors that “I don’t want to rush anybody” to denuclearize and that “as long as there’s no testing, we’re happy” — Trump on Monday pushed his argument for winding down North Korea’s weapons program sooner rather than later.

“Meeting for breakfast with our Nation’s Governors – then off to Vietnam for a very important Summit with Kim Jong Un,” he tweeted. “With complete Denuclearization, North Korea will rapidly become an Economic Powerhouse. Without it, just more of the same. Chairman Kim will make a wise decision!”

Meeting for breakfast with our Nation’s Governors – then off to Vietnam for a very important Summit with Kim Jong Un. With complete Denuclearization, North Korea will rapidly become an Economic Powerhouse. Without it, just more of the same. Chairman Kim will make a wise decision!

— Donald J. Trump (@realDonaldTrump) February 25, 2019

Over the weekend, the president attacked critics who said he hasn’t made enough progress in nuclear talks with North Korea, arguing that his White House has taken greater strides toward ending the nuclear threat from North Korea than other administrations.

So funny to watch people who have failed for years, they got NOTHING, telling me how to negotiate with North Korea. But thanks anyway!

— Donald J. Trump (@realDonaldTrump) February 24, 2019

WATCH:

President Trump: "Right after this meeting I leave for Vietnam where I meet with Chairman Kim and we talk about something that, frankly, he never spoke to anybody about but we're speaking and we're speaking loud."

Trump speaks to a “business session” breakfast for governors. pic.twitter.com/mEVmqFSxsb

— The Hill (@thehill) February 25, 2019