Speaking at a political event earlier this week, Sen. James Inhofe (R-Okla.) said that the only reason fellow Republican Senator John McCain gets re-elected is "because of one thing -- earmarks."
The comments expose a rift in the GOP between the more moderate members, such as McCain, and more conservative members.
Despite his rightward swing against Republican challenger J.D. Hayworth, McCain has crossed the aisle to work with Democrats, most notably on campaign finance reform and climate change.
Inhofe has been a staunch conservative, famously and repeatedly advocating that global warming is a "hoax."
KMRG reports that Inhofe is currently writing a book on his political career, a chapter of which features McCain.