Former US President Donald Trump. File photoWASHINGTON, Jan 30 Former US President Donald Trump, speaking to his supporters at a rally in Conroe, Texas, threatened to launch a corruption investigation into his successor Joe Biden as soon as Congress returns to Republican control .Trump has expressed hope that his Republican Party comrades will win a majority in the House of Representatives and the Senate in the November 8 midterm elections. investigated and exposed by Congress. <…> The millions of dollars that the Bidens took from China also explain why Joe refused to hold the (Chinese) Communist Party accountable for the virus released on us and the rest of the world. denies allegations of involvement in numerous foreign business projects of his son Hunter, who, in particular, was on the board of the Ukrainian company Burisma. Trump accuses Biden of threatening World War III