Here is the text from Aug 15, 2016:
I want to believe the path you threw out for consideration in Andys office that theres no way he gets elected but Im afraid we cant take the risk. Its like an insurance policy in the unlikely event you die before youre 40, Strzok texted Page."
I interpret the text message as wanting to do something before the election. They still had ~3 months to go before the election. On Sep 2, 2016, Page texts Strzok "POTUS wants to know everything".
Note the Sep 2 date from the Daily Caller:
"Halper, a veteran of the Nixon, Ford and Reagan administrations, unsolicitedly contacted Papadopoulos on Sept. 2 with an offer to fly the Trump associate to London for several nights to discuss a policy paper about energy issues in Turkey, Cyprus and Israel. Papadopoulos, who has worked on energy issues at various think tanks, accepted the offer and flew to London."
As the column explains the insurance policy was the dossier.