You have to make a decision given the information you have. You can chose to wait, but that is a decision. You will always have to choose again in the future based on new information, but often once you set a plan in motion you should continue even if though without the sunk costs of the past you wouldn't.
I don't know who the next President will be. The current president could die in an hour. The current president could win or lose re-election. The current president could become a military dictator for life. The above applies to any president of any country (not just Trump). You have to decide what the risk of each is and prepare accordingly.