In an electoral system in which money is the ultimate kingmaker, Donald Trump has been courting the country’s billionaires — and they have their checkbooks ready. The ability of the 77-year-old presumptive Republican presidential nominee to raise money from average Americans is unchallenged, and his historic criminal conviction in New York has not dented the operation in the slightest. Trump’s campaign team says he raised more than $53 million in the 24 hours after Thursday’s verdict, which saw him found guilty on 34 felony counts of falsifying business records in a conspiracy to unlawfully i…