Trump impeachment trial begins with witness battle
US Democrats have ruled out a "witness swap" with Republicans in President Donald Trump's impeachment trial.
Lawmakers who are seeking to remove the president from office hope to hear testimony from his former National Security Adviser John Bolton.
But Democrats refused any deal to allow the son of former US Vice-President Joe Biden to be called as a witness.
Mr Trump is accused of abuse of power and obstruction of Congress. He strongly denies any wrongdoing.
U.S. President Donald Trump's impeachment trial began in the Senate with arguments over the rules for how the trial should be conducted. Lev Parnas's attorney requested that Attorney General William Barr recuse himself from the federal campaign finance case against Parnas. We discuss how it all ties into Trump's impeachment trial. Aired on 01/20/20. Donald Trump's impeachment trial has begun in the Senate, but Democrats have already claimed the process for the hearing is unfair. Senators Lisa Murkowski and Susan Collins said they'd be likely to vote for additional information in President Trump's impeachment trial. New evidence is bolstering the claims of Lev Parnas, an indicted associate of Rudy Giuliani, that he was connected to the Trump administration — including photos with Donald Trump Jr., Ivanka Trump and other Republican officials.