This could be crucial in a recount battle.

From the release:

Club for Growth PAC Endorses Joe Miller for Senate in Alaska
Pro-Growth Hero Will Get Immediate Help
WASHINGTON – Club for Growth PAC today announced its endorsement of Joe Miller in the Republican Senate primary election in Alaska. The formal election was held Tuesday, and Miller holds a lead heading into what could be a protracted process of absentee vote-counting.
“Joe Miller’s principled pro-growth leadership is exactly what Alaska and America need today in Washington,” said Club President Chris Chocola. “Joe is committed to our nation’s founding principles of economic freedom and limited government, and Club for Growth PAC is committed to Joe.”
“Club for Growth PAC will help Joe Miller overcome Lisa Murkowski’s money and manpower advantages, to make sure this process remains fair and transparent.”
Club for Growth PAC is currently reaching out to Club for Growth members, encouraging them to contribute to Miller’s campaign, so it has the resources necessary to monitor and engage the ongoing ballot-counting process in Alaska.
Miller is the 22nd candidate the Club for Growth PAC has endorsed in the 2010 election cycle.