Answer:
journalists who report on events for a news agency
Step-by-step explanation:
The term correspondent is usually used in a number of scenarios which may not give the same connotation. However, it is very popular in journalism as it is used to refer to journalists who cover events or happenings at locations for broadcasting organization. In the scenario above, it was described that the senator entered for a press conference, this definitely means that there will be journalist present in the for the press conference as well who will look to take recordings of the conference while also asking questions from the senator. Hence, the correspondents in the text are most likely journalists who report on events for a news agency