Later today Kamala Harris will participate in a Philadelphia forum organized by the National Association of Black Journalists. The event has been scheduled after the vice-president did not attend the group’s convention held in Chicago during the summer. Donald Trump did appear at that event in July – with a typically contentious performance during which he repeated lies and attacked Kamala Harris’s racial identity. Some journalists were critical of the organisation for inviting him. Reuters reports that, as Trump did, Harris will face a panel of three journalists in the session. The location is also significant – Pennsylvania is often regarded as a “must win” swing state in order to take the presidency.