We should go all in now. Bitcoin bull run is now confirmed if the news comes true.
Even if this news does not become true, even then the bull run is confirmed. There should be no doubt about it. The increasing popularity of the bitcoin and the institutional investments / ETF are enough for the bitcoin bull market confirmation.
Regarding going all into Bitcoin is not recommended, even if Trump declare a Bitcoin strategic reserve. Yes you should invest in bitcoin only the amount that is surplus with you and you can afford to lose. Going all in is like gambling and you should be careful with all investments.