SNL’s Kate McKinnon impersonates Lindsey Graham with gay jokes.

The out comedian, in a spoof of the Brett Kavanaugh hearing, tapped into rumors that have long swirled around the senator's lifelong bachelorhood. (Screen grab from NBC)

Kate McKinnon impersonated Sen. Lindsey Graham — and in doing so, included jokes that referenced longstanding rumors about his sexual orientation.

McKinnon, who is a lesbian, mocked the Republican’s outrage during the testimony of Brett Kavanaugh, who defended himself Thursday…