"A truly great, patriotic & charitable man, Bernie Marcus, the co-founder of Home Depot who, at the age of 90, is coming under attack by the Radical Left Democrats with one of their often used weapons", Trump said in a two-part tweet. It'll crush the dreams of the poorest Americans and disproportionately harm minority communities.
"We will defend the environment but we will also defend American sovereignty, American prosperity, and we will defend American jobs", he said in his Monday speech.
The Trump administration has aggressively tried to roll back dozens of Obama-era regulations aimed at improving air and water quality, scaling back energy exploration and protecting animal habitats.
Mr Wheeler told reporters ahead of the event that key air pollutants have fallen around 70 per cent since the 1970s, including "under Trump's watch".
Twitter declined to say on Monday if it had been invited or would take part.
His administration has eased environmental regulations, and past year Trump said he didn't believe his own government report warning of massive economic losses if carbon emissions continue to feed climate change unchecked.
"There has never been a president who has actively pursued an agenda so hostile to the environment and public health at the behest of polluters than Mr Trump", he said.
Asked why the President made a decision to hold the remarks and whether the Democrats' Green New Deal would be brought up during remarks, Neumayr said it was discussed when Trump spoke to his advisers about his administration's environmental actions.
"The United States does not have to sacrifice our own jobs to lead the world on the environment", Trump said, adding that the USA can have a strong economy and clean environment at the same time.
On Thursday, he will join other pro-Trump online personalities for what the White House billed as a gathering of "digital leaders" where invitees expect to discuss alleged censorship by the tech giants.
U.S. greenhouse emissions grew 3.4 per cent in 2018, the largest increase in eight years, and Trump scrapped predecessor Barack Obama's Clean Power Plan, which set a goal of reducing emissions 32 per cent by 2030, taking the 2005 level as a baseline.