The Olympic torch has been lit in Buenos Aires, Argentina, its first stop after protesters marred a San Francisco ceremo

The video covers the ceremonial handover of the Olympic torch in Buenos Aires. It begins with an introduction to the event, followed by the torch being handed over to Carlos Espínola by the city's head, Mauricio Macri. The torch relay is set to commence through the city's avenues, culminating in a festival at the Club Hípico Argentino. The video captures the emotional significance for athletes involved in the torch relay.

¿Quién es el Jefe de Gobierno de la Ciudad de Buenos Aires mencionado en el texto?

¿Qué se está celebrando en el acto mencionado en el texto?