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I don't know specifically where you get the "eight trillion" number, and it's not even clear whether or not you're referring to Trump or someone else, but I'm well aware that Trump's annual deficits were in excess of a trillion a year, and I was repeatedly critical of that as one of my few disappointments with the four years of Trump's presidency, that he didn't reign in deficit spending.
(Obama/ Biden's annual deficits as well were well in excess of a trillion a year, but I notice you selectively omit any mention of that. Obama's 8 years added $10 trillion in new deficit spending. That even in your worst exaggerations Trump cannot be spun to have approached or equalled. )
If you were paying attention over the last 6 years, I discussed that repeatedly with M E M here, and at least on the defense spending, Trump only wanted about $700 billion his first year to rebuild our military (the military that Barack Obama destroyed and under-funded for 8 years). But Pelosi, Schumer and the Democrat Bolsheviks refused that funding proposal, and instead extorted a total of $1.6 trillion in other domestic spending to fund Democrat wet-dream liberal spending that they've hungered 50 years for. That they extorted before they'd give Trump and our military what they needed to rebuild our national security.
And I guess the need for that defense funding was so dire that Trump didn't fight the Democrats and re-negotiate that defense spending as aggressively as I would have liked him to.
But that is also something Trump is not credited for: that he is a negotiator. And the Democrats could have negotiated and gotten generous deals on many issues, to move forward and finally resolve the nation's problems on many fronts.
But in almost all cases, no matter how generous Trump's offer to compromise, his offers to resolve major issues, from immigration to military defense to border security, the Democrats absolutely refused to negotiate and give Trump a political victory. And in doing so, the Democrats made clear they don't have a real interest in helping hispanics or illegals, or the poor, or impacted by rising drug addiction, or human trafficking, or victims of crime, because when Democrats had House and Senate majorities and a president (Trump) who made multiple generous bipartisan offers to solve these problems, the Democrats absolutely wouldn't come to the table.