"They want to select a slate of candidates to give them a chance before the summer," she said.
She said they try to find candidates in time for the summer so they can go collect the needed signatures and begin campaigning, but they do not want to announce their slates too early, since voters are not yet paying attention.
She said the parties are not usually concerned with making their announcements before or after the other party, and generally are not concerned with stealing each other's spotlight.
"The two parties run pretty independently of each other already," Desfosses said.
She added that a common tactic by candidates is to interview for party nominations they are not expecting to make connections with party leaders or advance their political careers.""