> This new administration lays bare what we've known all along - the legislative gridlock and dysfunction in the house of representatives and senate has made them completely incapable of governing -- the least productive in a generation.

Some articles which were written a few years ago, but were re-upped recently:

> In a presidential system, by contrast, the president and the congress are elected separately and yet must govern concurrently. If they disagree, they simply disagree. They can point fingers and wave poll results and stomp their feet and talk about “mandates,” but the fact remains that both parties to the dispute won office fair and square. As Linz wrote in his 1990 paper “The Perils of Presidentialism,”[1] when conflict breaks out in such a system, “there is no democratic principle on the basis of which it can be resolved, and the mechanisms the constitution might provide are likely to prove too complicated and aridly legalistic to be of much force in the eyes of the electorate.” That’s when the military comes out of the barracks, to resolve the conflict on the basis of something—nationalism, security, pure force—other than democracy.

* https://slate.com/business/2013/10/juan-linz-dies-yale-polit...

> Still, Linz offered several reasons why presidential systems are so prone to crisis. One particularly important one is the nature of the checks and balances system. Since both the president and the Congress are directly elected by the people, they can both claim to speak for the people. When they have a serious disagreement, according to Linz, “there is no democratic principle on the basis of which it can be resolved.” The constitution offers no help in these cases, he wrote: “the mechanisms the constitution might provide are likely to prove too complicated and aridly legalistic to be of much force in the eyes of the electorate.”

* https://archive.is/https://www.vox.com/2015/3/2/8120063/amer...

When it has come to presidential systems, the US has been the exception as most others with something the same have not worked out over the long term.