Top Democrats call for investigation into share-buying spree by Trump allies

Fossil fuel execs Robert Pender and Michael Sabel deny wrongdoing after report on potential conflict of interest

Two more senior Democrats have called for an investigation into a share-buying spree by two fossil fuel billionaires with close ties to the Trump administration, after a Guardian investigation raised questions about potential wrongdoing.

Robert Pender and Michael Sabel, the founders and co-chairs of Venture Global, a liquefied natural gas (LNG) company headquartered in Virginia, bought more than a million shares worth almost $12m each in March. The trades took place just days after a meeting with senior White House officials, who then issued a key regulatory permit that helped expand the company's business in Europe.