Actually, Trump did lose whites with college degrees that make over $250k+. Look at this graph:
Also, national polls were very accurate this year. It was the state polls (specifically in the Rust Belt) that were inaccurate. IIRC, the national polling average before the election had Trump behind 2 points, which matches the popular vote.
Yes, but Trump still won the votes of white people that were rich,
"$<30,000: Trump 58; Clinton 34 (T +24)
30-49,999: Trump 56; Clinton 36 (T+20)
50-99,999: Trump 62; Clinton 34 (T+28)
100-199,999: Trump 56; Clinton 39 (T+17)
200-249,999: Trump 52; Clinton 44 (T+8)
>$250,000: Trump 50; Clinton 42 (T+8)"
Trump won white voters of all income! As we can also see from that graph, it is quite obvious if you combine the votes of non-college educated whites + college educated whites, people that earn over $250 000 voted for Trump.
This election is sad, and any leftist should find it sad, not trying to find ways, of self-congratultory, we won the votes of those rich elite in Connecticut, yay!