Washington | Caroline Kennedy, the only remaining child of assassinated Democratic president John F. Kennedy, says she was “horrified” by the recent attempt on Donald Trump’s life, as she made a personal plea for politicians and their supporters around the world to tone down the violent rhetoric.

In a wide-ranging interview with The Australian Financial Review in Washington on Monday (Tuesday AEST), Ms Kennedy, who is the US ambassador to Australia, said she was ashamed there were still Americans prepared to resort to extreme violence because of political differences.