jats:titleAbstract</jats:title> jats:pWe present a spectral analysis of a 200 ks observation of the broad-line radio galaxy 3C 120, performed with the high-energy transmission grating spectrometer on board the jats:italicChandra</jats:italic> jats:italicX-ray Observatory</jats:italic>. We find (i) a neutral absorption component intrinsic to the source with a column density of jats:inline-formula jats:tex-math

</jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="apjaa6342ieqn1.gif" xlink:type="simple" /> </jats:inline-formula> cmjats:sup−2</jats:sup>; (ii) no evidence for a warm absorber (WA) with an upper limit on the column density of just jats:inline-formula jats:tex-math

</jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="apjaa6342ieqn2.gif" xlink:type="simple" /> </jats:inline-formula> cmjats:sup−2</jats:sup>, assuming the typical ionization parameter logjats:italicξ</jats:italic> ≃ 2.5 erg sjats:sup−1</jats:sup> cm; the WA may instead be replaced by (iii) a hot emitting gas with a temperature jats:italickT</jats:italic> ≃ 0.7 keV observed as soft X-ray emission from ionized Fe L-shell lines, which may originate from a kiloparsec-scale shocked bubble inflated by the active galactic nucleus (AGN) wind or jet with a shock velocity of about 1000 km sjats:sup−1</jats:sup> determined by the emission line width; (iv) a neutral Fe Kjats:italicα</jats:italic> line and accompanying emission lines indicative of a Compton-thick cold reflector with a low reflection fraction jats:italicR</jats:italic> ≃ 0.2, suggesting a large opening angle of the torus; (v) a highly ionized Fe jats:scxxv</jats:sc> emission feature indicative of photoionized gas with an ionization parameter logjats:inline-formula jats:tex-math

</jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="apjaa6342ieqn3.gif" xlink:type="simple" /> </jats:inline-formula> erg sjats:sup−1</jats:sup> cm and a column density of jats:inline-formula jats:tex-math

</jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="apjaa6342ieqn4.gif" xlink:type="simple" /> </jats:inline-formula> cmjats:sup−2</jats:sup> localized within ∼2 pc from the X-ray source; and (vi) possible signatures of a highly ionized disk wind. Together with previous evidence for intense molecular line emission, these results indicate that 3C 120 is likely a late-state merger undergoing strong AGN feedback.</jats:p>