Because we know Giuliani visited Betancourt in Madrid; because we know Giuliani lobbied Trump's Attorney General Bill Barr on Betancourt's behalf; because Giuliani is on record saying Betancourt couldn't be discussed because doing so was a matter of "national security"; the question aftert the title must then be: did the Donald get money from Alejandro Betancourt?
Make sure to read this, and specifically points 94-96 and 132.