US President Trump signs executive order related to mail-in voting, says working on proof of citizenship and that voter ID and citizenship proof are subjects for another time

President Trump's signing of an executive order related to mail-in voting introduces uncertainty around voting processes, which could yield mixed reactions across markets. While the immediate impacts on US politics and voter behavior are paramount, the implications on market sentiment could ripple through equities and currencies, particularly in volatile trading environments. This development signifies potential shifts in the political landscape that investors should watch closely for further fallout and regulatory implications.