For the second time in three weeks, Gov. Gavin Newsom has abandoned California to fly to Europe and schmooze with world leaders at the Munich Security Conference.

The White House and the governor’s political adversaries have brutally dismissed Newsom’s three-day trip as wasteful showboating.

Newsom has been accused of ignoring California’s growing list of problems to peacock around at the talkfest being held in two five-star hotels in Munich – while bashing America and President Trump.

“Gavin Newscum’s travels to Davos and Munich would be considered a vanity project if anyone there actually knew or cared who he was,” White House spokeswoman Anna Kelly said.

”He should fix the many problems he created in California instead, but he clearly enjoys the humiliation ritual — sick!”

Newsom even tried to take credit for and claiming credit for ”manufacturing innovation” in America, claiming Tesla only got off the ground because of his incentives

The invite-only Munich Security Conference is being held across two luxury hotels in Old Town Munich — the Hotel Bayerischer Hof and Rosewood — with Newsom taking in two sessions on climate change and transatlantic relations.

He also plans to ink a partnership with Ukraine and have a powwow with German Chancellor Friedrich Merz.

The governor left the state Thursday and will arrive back in California Monday, his office said.

Newsom is fresh off a January trip to Davos, where he scolded European leaders for caving to Trump’s demands.

Other likely 2028 presidential candidates in Munich include Sen. Mark Kelly (D-Arizona), Democratric Michigan Gov. Gretchen Whitmer and Rep. Alexandria Ocasio-Cortez (D-New York).

During a climate change panel Friday, Newsom accused Trump of “doubling down on stupid” by rolling back sweeping Obama-era climate policies that regulated greenhouse gas emissions.

This is despite EPA Administrator Lee Zeldin estimating the changes would lower car costs by $2,400.

“Trump is trying to turn back the clock,” Newsom told a half-empty room of European policymakers to a smattering of applause.

President Obama’s “endangerment finding” in 2009 declared greenhouse emissions harmful to human health and allowed the Environmental Protection Agency to constrain carbon dioxide, methane and nitrous oxide by vehicles and power plants.

Newsom called Trump’s executive order a “death sentence” for the US auto industry, claiming climate regulations have helped the US auto industry keep up with competition from China.

“It’s been California regulation in this space that has driven manufacturing innovation,” Newsom boasted.

“I hope if there is nothing else I can communicate today: Donald Trump is temporary. He’ll be gone in three years.”

The timing of Newsom’s Euro trip sparked immediate backlash in the Golden State.

“There’s something seriously wrong with Gavin Newsom,” Steve Hilton, a former Fox News host who’s running for California governor as a Republican, told The Post.

“Just weeks after humiliating himself at Davos, he flies back to Europe so he can lecture everyone about climate change while attacking our president and undermining America’s reputation. And for what?

State Republican Sen. Suzette Martinez Valladares hit out at the timing of Newsom’s trip.

“Once again, at a time when families here at home are being crushed by a cost-of-living crisis and businesses are struggling to stay afloat, the governor has chosen to leave the state for another overseas conference,”

Republican Assemblymember Carl DeMaio of San Diego also panned the governor’s constant touring.

“Instead of fixing the problems he created back home, Gavin Newsom is running around the world to suck up to foreign leaders. Newsom should stay home and clean up the mess he’s created,” DeMaio told The Post.

Newsom’s six-figure sojourn is being paid for by the California State Protocol Foundation — a secretive nonprofit run by the governor’s longtime aides – which receives money from special interests.

Since 2019, the Protocol Foundation has collected more than $6.2 million in donations to pay for Newsom’s travel and events, according to state records. Expenses have ranged from minor policy summits to his inauguration ceremony and trips to the Vatican and Mexico.

The largest checks cut to the Protocol Foundation in Newsom’s tenure as governor came from the Hewlett Foundation, which gave $300,000 in 2023 to fund a state delegation trip to China, and UC Berkeley tossing in $220,000 last March for Newsom to attend a climate summit at the Vatican.

The governor’s office declined to say which posh hotel Newsom is staying at during his trip to Germany, citing security concerns.