He questioned Charles Koch's "claims" that he is donating "millions of dollars" to GOP candidates, saying "I know very few who have seen this (?)".
The president later added: "I'm for America First & the American Worker - a puppet for no one".
Trump's Twitter strike on Charles Koch comes two days after he went to war with the libertarian-leaning megadonors who are powerful in Republican circles by labeling them a "total joke" who are "against Strong Borders and Powerful Trade."
Charles Koch (pictured above right), David Koch (pictured center above) and many in their network of donors made news over the weekend by criticizing Trump at a Colorado conference and refusing to support a pro-Trump Senate candidate, Rep. Kevin Cramer (R-N.D.), in the 2018 midterm elections.
"They want to protect their companies outside the USA from being taxed, I'm for America First & the American Worker - a puppet for no one", Trump wrote. "I never sought their support because I don't need their money or bad ideas", Trump tweeted in the early morning. The Koch network boasts an army of grassroots activists across 36 states and has promised to spend between $300 million and $400 million on politics and policy this election cycle alone.
- President Donald Trump on Tuesday slammed the powerful Koch-led political donor network as "globalist" and "a total joke", rejecting the conservative group amid signs of a growing public fissure between the President and business over trade and immigration.
Charles Koch and Koch network representatives said over the weekend they will be more selective about the candidates they support in the future, citing disagreements about economic policies. While the Kochs refused to endorse Trump's first presidential run, the president's loyalists don't want his 2020 re-election campaign bogged down by lingering bad blood.More news: Donald Trump attacks LeBron James' intelligence: 'I like Mike'
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"Their network is highly overrated, I have beaten them at every turn".
James Davis, a spokesman for the Koch network, said in a statement, "Just as we have in the past, we will work together with the President, elected officials and others where we agree".
Trump's latest attack on Koch plays off his previous one, in which he called him a "globalist". Trump's trade policy has always held the United States worker as more important than foreign workers, and seeks to return manufacturing and other industries to the US.
But once Trump took office, he appeared to have made peace with the Koch network.
In line with their corporate interests, the Koch brothers mostly lobby for reducing taxes and federal spending, as well as low regulation oversight on businesses.
Despite the sheer number of embedded Koch operatives and fealty to the Koch agenda (repeal of the Paris Climate Accord, tax cuts for the wealthy, rollback of environmental protections, etc.) the New York Times and numerous other mainstream outlets continue to push the narrative that the Kochs did not support Trump in the 2016 election.