When Lynch first saw the article "We are alone and unsupported," he realized it must have come from the Progressive Party, because only someone who thoroughly understands the domestic and international situation can write such an article.
At the same time, wanting media outlets to publish such an article is not an easy task; one must have strong backing and execution power to make the media print it without hesitation.
At this critical moment, the only party Lynch could imagine giving the Conservative Party a backstab like this was the Progressive Party.
Ordinary people and forces doing such a thing would only anger the ruling party. Even if the Conservative Party is in a state of panic right now, it would still be relatively easy for them to spare a hand to deal with someone disobedient.