In the recent elections, which voting demographic has become a more cohesive voting bloc and has sided heavily with the democratic party, seeing it as more closely aligned with their interests? the middle class the affluent african americans hispanics

I believe the answer is: Hispanics.

The democratic party tend to prefer less border regulations and higher amount of tax income to be allocated for welfare

This value is usually supported by Hispanics citizens in united states because they current state of economy placed them the highest on poverty level.