Daniel Ricciardo is one of the most popular Formula 1 drivers in the United States. Many of the fans attending this weekend’s US Grand Prix will feel his absence has left a hole. Ricciardo was the ‘star’ of Drive to Survive, the Netflix series that has driven F1’s significant growth stateside. His unique sense of humour made him one of the sport’s most marketable personalities. RB title sponsors Visa and Cash App lobbied for Ricciardo to stay at the team ahead of the races in Austin and Las Vegas. His presence made those events especially lucrative. However, the senior leadership at Red Bull f…