Congress, the example of Presidents such as Carter show that party loyalty is not often guaranteed or even e!
             xpected in the US system. This explains the reliance on 'logrolling' by the US President when attempting to gain support for legislation, rather than the reliance on party loyalty, which dominates British politics. The example of Reagan, a Republican, in gaining control over the federal budget through the cultivation of good relations with Tip O'Neill, a Democrat House Speaker, showed clearly how the support of the opposing party is often required to pass legislation within the US system. It has been noted though that control over party, for both the President and British Prime Minister depend much on the varying political climate at that time. In Britain, the example of the Conservative rebellions over Europe throughout the life of the Major government which served to decrease the government majority and eventually render it non-existent, showed how party support could be lost and
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