> The analysis showed that when Republicans controlled the House of Representatives, the average science and research account received approximately $150 million more in funding than when Democrats held the majority.

Yes, because when the Dems hold the majority, the Republicans filibuster or threaten government shutdowns to force painful cuts.

Also, comparisons in USD are meaningless. % of the budget, or expressed in terms of GDP, or inflation-adjusted USD, would be far more useful when comparing things separated by four-year cycles.