GOP salivates at the biggest campaign finance win since Citizens United

Republicans have waged a decades-long battle to blow up the campaign-finance laws that rein in big-money spending. Now, they are making a play that could end in their biggest victory since the Citizens United ruling in 2010.

The GOP is growing increasingly optimistic about their prospects in a little-noticed lawsuit that would allow official party committees and candidates to coordinate freely by removing current spending restrictions. If successful, it would represent a seismic shift in how tens of millions of campaign dollars are spent and upend a well-established political ecosystem for TV…