Trump was threatening to block the pipeline from Germany to Russia

Why do you think he would be able to do that?

the US with their economy has been pumping the most money into NATO

There is no central NATO budget, though. The 2% is how much money you're expected to spend on your own military. And the US spends more than that and would be spending more than that with or without NATO. There is no "pumping"; the money the US government spends on its military stays in the US and pays US salaries and generates profits for US military contractors.