That is accurate but total donations by any one person are now unlimited where they were before as far as national and local levels. I believe it was $123,000.
Example:
Sorros, Addleson, Koch Bros can contribute unlimited sums to all candidates they choose. This also does not change anything relating to PACs. This basically means they can purchase wholesale any body of government. So for states, districts, municipality, where money is hard to come by, they can effectively buy any politician they want to achieve their desired outcome. And politicians are cheap, especially when purchased enmasse through the national party system.
If they want to get a piece of legislation passed all they have to do is now contribute to the majority in totality and its theirs (at a minimum). Want a "mandate?" then they contribute to all of the representatives. Don't want their money, then you will be out and someone who does will be in.
But this does not qualify as quid pro quo per the SCOTUS because there are buffers like lobbyists and PACs.
"Yeah, Buffer's... There were lots of Buffer's."