Why may a president with a large majority in the House and a good working majority in the Senate still struggle to get bills through Congress?

Question

Quizplus · Accepted Answer

Even with a good working majority, some bills may face filibusters in the Senate, which means that a minority of senators can prevent the legislation from being voted on. To overcome this, the Senate needs a supermajority of 60 votes to invoke cloture and end debate, which requires bipartisan support. So, a president with a large majority in the House and a good working majority in the Senate may struggle to get bills through Congress if they don't have enough votes to break a filibuster.

Why May a President with a Large Majority in the House