My statement definitely were intended for both parties.   Most funding is technically legal- it helps to be the a legislative body that gets to make law, or be the only body that can modify campaign financing.

Powerful people 'mingle' with powerful friends, it difficult to prove quid pro quo, although the influence is obvious to all.

Why do you believe the political parties think it is essential to raise 100's of millions of dollars?  What does it go for?    (The parties are private organizations)

Go to Open Secrets,  it give details on the money flow