The Conservative-Liberal Democrat Coalition was regarded as a deviation from the British political tradition of Westminster-type Majoritarian government. Although differences existed in the coalition partners’ ideologies and policies，the Coalition completed its five-year term smoothly，and the UK has seen strong economic growth since 2014. After five years of Coalition，the Conservative Party gains economic trust and David Cameron maintains relatively high approval ratings among British voters，while the influence of the Liberal Democrats and Nick Clegg declined sharply due to their excessive compromises to the Conservatives. The Labour Party and the Conservatives remained close in polls for a time，but British voters neither trusted Labour’s economic competence nor approved Ed Miliband’s leadership. The Labour’s election failure intensified the debates between its left and right wings，which put the Party into a new predicament. Moreover，the SNP and UKIP have generally gained more influence in British politics over the past years.