Sen. Orrin Hatch (R-Utah) told Politico he would vote against House Speaker John Boehner's "Plan B" legislation to avoid the fiscal cliff by allowing tax cuts to expire for those making more than $1 million.

"I would vote against it because I am against raising rates," Hatch said. 

Hatch, the ranking member on the Senate Finance Committee, said Boehner would have to secure support from Democrats. 

Even if the measure made it out of the Senate, President Obama has said he would veto it, saying it does not raise enough revenue. But Hatch's comments are a reminder that many conservatives are not on board with Boehner's back-up plan.