"We've done what too many people in Washington refuse to do, we've crossed the aisle and worked together," said Alaska republican Rep. Don Young in a warm and fuzzy spot in August highlighting his partnership with democrat Rep. Mazie Hirono.

But on Monday, Young’s official endorsement of Hirono’s challenger Gov. Linda Lingle put a dose of cool water on that.

In a letter released to his constituents, Young said:  "Lingle has a proven track record of working across the aisle to solve problems..."

Hirono's camp quickly sent a video clip showing Lingle's support of former VP candidate Sarah Palin in 2008.

But earlier this month, her campaign avoided Lingle's TV tussle with Senator Dan Inouye.

"He seems to believe he should be the one who should pick our next Hawaii senator," said Lingle in a spot that ran two weeks ago.

Also on Monday, the candidates have released their latest campaign fundraising reports, the first since the primary.

Hirono's numbers show a big money bump in the third quarter.

Between July 1st through September, her campaign raised about $1.4 million dollars, from nearly 24,000 donors.

It was her strongest fundraising quarter to date.