US President Joe Biden on Sunday appealed for the country to "unite as one nation" after Saturday's apparent attempted assassination of former president Donald Trump, and said he was ordering an independent security review of the lead-up to the attack.Mr Biden was speaking from the White House after receiving a briefing on the investigation in the Situation Room.

US President Joe Biden on Sunday appealed for the country to "unite as one nation" after Saturday's apparent attempted assassination of former president Donald Trump, and said he was ordering an independent security review of the lead-up to the attack.Mr Biden was speaking from the White House after receiving a briefing on the investigation in the Situation Room.