If what he said about bitcoin adoption will be true when he gets into power,I see it as a positive impact on bitcoin but this doesn't mean that the price  will be as high as you predicted. It will not also lead to massive adoption by other countries, you should also remember that not everyone will use bitcoin if after adoption.

Politician can not influence the price of bitcoin since it is not controlled by the government. Sometimes politicians use this as a strategy for the youths to vote them into power but after they have won the election,they will go against bitcoin adoption.