Idaho Republican committee leaders are considering a plan to move the state's 2012 presidential primary to early March in a bid to make the state more relevant in the nominating process.  For decades, the Idaho primary has been held in late May, a time when the Republican presidential nominee has already been decided.  The Idaho Statesman reports the Republican Central Committee will consider later this month moving up the primary to March 6, putting Idaho among the states taking part in a Super Tuesday caucus.  Supporters say the May primary limits Idaho's influence in picking the GOP presidential nominee to a fundraising role. For example, GOP hopeful Mitt Romney  eld fundraisers in Boise and Idaho Falls last month without devoting much time to getting to know ordinary voters.