'I know what I'm doing!' Trump hits back as his Ukraine peace efforts get slammed

A few hours ahead of a scheduled White House meeting between President Donald Trump, Ukrainian President Volodymyr Zelensky, and European leaders, the former took to his social media to reassure critics: "I know what I 'm doing."

Posting to Truth Social on Monday morning, Trump claimed, "I’ve settled 6 Wars in 6 months, one of them a possible Nuclear disaster, and yet I have to read & listen to the Wall Street Journal, and many other who truly don’t have a clue, tell me everything that I am doing wrong on the Russia/Ukraine MESS," Trump ranted.

The six wars claim has been made before, with Trump crediting himself in halting conflicts between Israel and Iran; the Democratic Republic of Congo and Rwanda; Cambodia and Thailand; India and Pakistan; Serbia and Kosovo; and Egypt and Ethiopia.

Experts, however, have suggested he's exaggerated his role in at least some of them.

Trump went on to blame former President Joe Biden for Russia's invasion of Ukraine — though Trump did promise that he would end the war within his first 24 hours in office.

"I know exactly what I’m doing, and I don’t need the advice of people who have been working on all of these conflicts for years, and were never able to do a thing to stop them," Trump claimed.

He went on to whine that those people offering advice were "STUPID" and had "no common sense, intelligence, or understanding, and they only make the current R/U disaster more difficult to FIX."

Trump closed by calling his critics "jealous" and "lightweight." He also claimed he "always" can get things done.

Russian President Vladimir Putin met with Trump on Friday, where Trump failed to secure a ceasefire.