Vance brands Harris a ‘coward’; Trump dinged for ‘attacks and insults’ as campaigns war after fiery event

This statement seems to refer to a political event where J.D. Vance, a candidate perhaps, labeled another individual, likely Kamala Harris, as a “coward”. Meanwhile, former President Donald Trump faced criticism for engaging in “attacks and insults”. This appears to have caused tension and conflict between opposing campaigns following the event. However, details such as who specifically is involved (beyond Vance, Harris, and Trump), what the event was, or what the specific issues or disagreements are aren’t specified. It’s likely this is part of a larger conversation about American politics.