His first act as leader was to purge the party of extremists.

他当上领导的第一件事就是清除党内的极端分子。

《牛津词典》

They managed to purge the party of undesirable members .

他们努力清除了党内不合格分子。

youdao

The activist have purge the party of moderates or have purge the moderates from the party.

激进分子清洗了党内的温和派分子。

youdao

The 2012 election amounted to a desperate attempt by the electorate to purge the Republican Party of clueless conservatism.

FORBES: Paul Ryan Brilliantly Evokes Clueless Conservatism

Their prime tactic is to crisscross the country urging voters to oust Democrats from office and purge the Republican Party of members deemed "RINOs, " or "Republicans in Name Only, " considered not conservative enough.

CNN: STORY HIGHLIGHTS

Former House Speaker Newt Gingrich, who had pointed to the Scozzafava backlash this week to caution against a "purge" of party moderates, formally switched his endorsement from her to Hoffman.

CNN: Question marks for GOP in New York district and beyond