NEW : She says she 'll win without establishment GOP support if it 's not offered . She , backed by Tea Party , beats Rep. Mike McGuire in GOP primary for Governor . Top GOP official : But with O'Donnell the projected winner , Democrats believe they can hold the seat in November , which could save their majority in the Senate . National Republicans will be slow to rally around O'Donnell . Democrats say her win could help them keep a Senate seat .
NEW : She says she 'll win without establishment GOP support if it 's not offered . She , backed by Tea Party , beats Rep. Mike McGuire in GOP primary for Governor . Top GOP official : National Republicans will be slow to rally around O'Donnell . Democrats say her win could help them keep a Senate seat .