I can provide more details as required, but the reality is that deficits have not been a problem in Democratic administrations.
Deficits have not been a problem in Democratic administrations because they were/are believers in the Keynesian economic theory that deficit spending is good for the economy. Unlike Mr. Friedman who believed that deficit spending was a brake on excessive spending by our government. It is unfortunate that Republicans have created the deficit we now have. It was however created for something that our government is
supposed to be doing, fighting a war. When the Democrats were engaged in deficit spending it was to pay for social spending programs that are not what our government is supposed to be doing.