Final answer:
Presidents in a divided government face challenges due to differing approaches and solutions between Republicans and Democrats.
Step-by-step explanation:
A major reason presidents are not as successful in a divided government is because Republicans and Democrats stand for different approaches and solutions to the nation's problems. When one party controls the presidency and another controls one or both chambers of Congress, the president must make compromises and cut deals to attract support from some members of the opposition party without alienating their own party. This can make it difficult for presidents to achieve their policy goals.