The New Republic's Eve Fairbanks recently described the feistiness of Senators Jim DeMint and Tom Coburn [emphasis mine]:

Their talent for rousing support among bloggers and talk-radio hosts and their disdain for bipartisanship--"I didn't come here to make friends, and I haven't been disappointed," DeMint told me--made them powerful. "You can only pass bills if you clear it with the two of them!" hisses a senior Democratic aide.