The comparison in the graph is GDP. However, the rate of national debt growth increased more with the previous president and during times of economic growth (ie last three years of Obama vs first three years of Trump).You're ignoring the gray bars on the graph. Those are recessions. The point is that during all the other presidents' terms, the deficit was increased around a recession. Look at the graph, every time the line shows a downward trend it slashes through a gray bar. Because everyone knows that the government should spend more in economically bad times to stimulate the economy, and spend less in economically good times. There is no gray bar in sight as Trump increased the deficit. Because he allowed the deficit to increase during good economic times.
A graph showing that would tell you same story.