evidence: On Tuesday morning, House Speaker Kevin McCarthy (R-Calif.) announced that he was authorizing an impeachment inquiry into President Biden. [...] What’s important about McCarthy’s claim is that it transfers the credibility of the informant to the allegation, which isn’t warranted. The informant was conveying to the bureau a conversation they had with Mykola Zlochevsky, the founder of the Ukrainian energy company Burisma. In the interview, transcribed in the released document, the informant states that Zlochevsky might simply be blowing hot air and that they, the informant, had no way of knowing that such a bribe occurred. In fact, at another point, Zlochevsky denied any interaction with Joe Biden. [...] After eight months in the majority in the House, though, Republican investigators have not been able to substantiate most of the allegations above, much less prove them. McCarthy’s willingness to overstate the scale, extent and importance of what his allies have uncovered would seem to bode poorly for the reliability and credibility of the impeachment inquiry he has now approved.