Simplify the following text for a Grade 10 native English-speaking person.
Original: As a New Dealer , he supported President Franklin D. Roosevelt , a Democrat , and in turn Roosevelt heavily funded the city and cut off patronage from many politicians and establishments who did not support La Guardia .
Simplified: As a New Dealer , he supported President Franklin D. Roosevelt , a Democrat , and in turn Roosevelt heavily funded the city and cut off patronage from LaGuardia 's foes .