Many of their slush funds have been shut down since Trump took office. The democrat party is usually funded through a large number of government kickback programs such as Planned Parenthood, Foreign Humanitarian Aid Programs, Fanny Mae & Freddie Mack dark money programs, etc. You don't really thing George Sorros uses his own money to fund the Democrats & world anarchy do you? As Trump shuts down these revenue streams, they need to divert money from other sources or they are dead for 2020 campaign funding..
Yes, they think Americans are that dumb. They have gotten away with it by pushing humanitarian aid programs such as these for Decades. Cali wants open borders & unlimited migrants because they are billing Federal Aid/social services programs for support for the migrants by the head to the tune of about $100,000/yr/migrant but distributing much less to them while pocketing the difference. Many migrants just disappear entirely, but the billing for them continues. It is estimated roughly 800,000 people disappear in this country every year.