Even with large majorities of their own party in congress, presidents experience difficulty in exercising legislative leadership because the president must compete against state governors for influence
a the weak nature of political parties hampers the president’s ability to control congress
b the president’s use of the veto is ineffective with congress
c individual members of congress attract greater publicity when challenging the president
d the president seldom addresses the same issues as members of congress

A. The weak nature of political parties hampers the president’s ability to control Congress

Explanation:

In the political literature it has been argued that a president is strong when defining policies, and therefore has the capacity to carry out his agenda; on the contrary, weak presidents are when their assemblies are what define the agenda, they have no independent constitutional authority over the legislation; and they are very weak if they lack control of a majority party.

 Congress must, by definition, control the government in a representative democracy, also in modern presidentialism.

When legislators who are members of a party recognize that these institutes have a weak institutionalization and volatility that leads to a crisis of party systems.

demand is the need and oportunity to buy a given good or service.