What impact will Tea Party wins have?
The conservative Tea Party movement has won several victories over mainstream Republicans in primary contests ahead of November's US mid-term elections. What does this mean for the Republican Party?
Republicans are hoping to benefit from anger over the US economy to win both houses of the US Congress in November.
The grassroots Tea Party movement - which favours tax and spending cuts - emerged as a force in American politics only last year. Candidates backed by the movement have won Republican senate nominations in Delaware, Nevada, Colorado, Florida, Kentucky and Alaska.
But observers say it has had a powerful effect on the Republican Party's choice of candidates for November and is seriously challenging the party's establishment.
Do you support the Tea Party movement? Will Tea Party-backed candidates win Senate seats in November? How will the movement shape mid-term elections? How should the Republican Party react to the movement's successes?
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