As the walls close in on Donald Trump and the GOP squabbles over spending, House Republicans are flirting with the idea of an impeachment inquiry against President Joe Biden. At least one of them isn’t thrilled about it. Rep. Ken Buck, a Colorado Republican, recently accused his colleagues of using impeachment to distract from their own party turmoil, calling it “impeachment theater.” Buck isn’t a moderate — he represents one of the reddest districts in his state and is a member of the ultraconservative House Freedom Caucus. But he’s one of the lone Republicans in the House who is willing to p...