It's not clever it's how it actually works. When Trump asked for a few billion dollars for his wall, they just said "no." What he was asking for was a little over half of what we spend on food stamps in one month. When Trump wanted an increase in military spending, he got it without any problem because he had a Republican House. Yes, the House did the spending, but they allocated money to the Presidents agenda because theirs was the same. But no matter what party is where, all spending comes from the House which the Democrats have had leadership of since 2018.
The same will happen when Republicans takeover Congress next year. Dementia won't get anything through unless he agrees to give them some or most of what they want. He will have his Democrat spending plus whatever spending the Republicans want which is how we travel over budget nearly every damn year.
The problem is our founders assumed no matter who was in charge, everybody would want what was best for the country. As time evolved, Democrats focused on what promotes the party more than the country.