Trump impeachment: lawyers and House Democrats lay out positions

• White House claims ‘dangerous attack’ on US democracy
• Democrats say Trump poses ‘threat to national security’
• Dershowitz: Trump acquittal would make me unhappy

Donald Trump’s legal team has delivered a fiery response to impeachment summons from the Senate, calling the two articles passed by the House “a dangerous attack on the right of the American people to freely choose their president”.

Related: Impeachment: is Trump set to survive and win a second term?