Mitt Romney has endorsed Tea Party favorite Christine O’Donnell after her upset win in last night’s GOP Senate primary in Delaware.“Now is the time for Republicans to rally behind their nominee, Christine O’Donnell. She ran an impressive campaign. I believe it is important we support her so we can win back the U.S. Senate this fall,” Romney said in a statement released through his Free & Strong America PAC. The PAC is sending her a $5,000 contribution.

O’Donnell’s win has been met with ambivalence from the party establishment. NRSC chairman Sen. John Cornyn (R-TX) announced today that the committee is sending her $42,000, after much talk last night that it would give up on the race. Meanwhile, conservatives have been pummeling Karl Rove for saying that the general election in Delaware “is not a race we’re going to be able to win.”

The latest PPP poll shows Democrat Chris Coons leading O’Donnell 50-34.