To me, this highlights that the Congress has done so little successfully that they have barely ever even had the chance for Obama to disagree.

I'd like to see a similar chart of # of total bills signed into law by presidents. I'm guessing we'd see Obama to be similarly low for the same reason.

Yeah, if we're looking at senate stats, we should look at the record number of filibusters since Obama's been president.

Part of the reason for it, is the style in which the hyper dysfunctional modern era US Government passes new laws.

They do it almost strictly as a bundling system to guarantee no laws are ever vetoed. Which is how they've managed to pass tens of thousands of new federal laws, with a mere 79 vetoes spanning a quarter century.

Line Item Veto is supposed to help with that. I don't know the mechanics, and if it becomes onerous when a bill has 1000+ pages.

The president was granted line-item veto by congress in the late 90s, when Clinton was in office. It got challenged in court and ruled unconstitutional.