Party leaders in Congress must work to gauge the support of their members and persuade their members to vote for the party position, because

oil! is what i am assuming

ok

explanation:

john maynard keynes developed new economic theories in response to the : b) great depression of the 1930s. his theories are so important that they are known as "keynesianism". in his works he supports the idea of a government with deeper involvement and intervention to end the great depression.