US President Donald Trump says he will deliver a speech to Congress next week, despite calls from top Democrats for it to be postponed over security risks.   Mr Trump insists the State of the Union will happen on 29 January since House Speaker Nancy Pelosi already invited him to address Congress this month. Mrs Pelosi said that was before the shutdown dragged into day 33. She shot back in a second letter that the lower chamber would not authorise the address before the shutdown ends. The president told reporters on Wednesday that Mrs Pelosi had cancelled the speech "because she doesn't want to hear the truth". "She's afraid of the truth," Mr Trump said. "She doesn't want the American public to see what's going on." Mr Trump earlier said that he was not surprised by Mrs Pelosi's response, and said the Democrats had "become radicalised". "It really is a shame. This will go on for a while. Ultimately the American people will have their way because they want to see no crime, they want to see what we're doing." Democrats have argued that with so many federal employees furloughed - temporarily laid off - or working without pay, the high-profile State of the Union address, which involves both chambers of Congress and the president, would not be logistically feasible. But Mr Trump has denied that there were any security concerns posed by the ongoing partial shutdown. AFP.