Michigan Cos Performed Substantially Better Overall on the Audited Annual Pretax Earnings Growth Front During Obama/Biden's Eight Years in Office 2009-2016 (Up a Simple Average Annual Growth of 24% Per Year) Than They Did During Trump/Pence's First Three Years in Office 2017-2019 (Down a Simple Average Annual Decline of 9% Per Year). Michigan Motor Vehicle & Parts Cos Saw Their Total Annual Pretax Earnings Improve By a Massive $70.2 Bil During the Obama/Biden Administration, Going From Total Pretax Losses of $46.8 Bil in Annual 2008 To Total Pretax Earnings of $23.4 Bil in Annual 2016. On the Other Hand, These Total Annual Pretax Earnings Declined By $11.9 Bil or By 17% Per Year During the Trump/Pence Administration's First Three Years in Office.

From a review of SEC filings and Google Finance, there were 34 Michigan Companies with stock market caps of above $1 bil in early August 2020 and which reported Pretax Income (Loss) From Continuing Operations in their annual financial statement earnings information filed with the SEC for each of the most recent twelve years (Fiscal Years from 2008 to 2019).  Two of these Michigan Companies recorded Reorganization Gains which I excluded from their Pretax Income or Loss.

The table below shows the Pretax Income (Loss) From Continuing Operations for each of these 34 Michigan Companies for fiscal year end 2019, the last year of the Donald Trump/Mike Pence's first three full years in office so far,  for fiscal year end 2016, the year before the start of the Donald Trump/Mike Pence Administration as well as also the last year of the Barack Obama/Joe Biden Administration, and for fiscal year end 2008, the year before the start of the Barack Obama/Joe Biden Administration.