You keep saying “to Congress.” Nobody ever accused him of that. He lied under oath in a deposition and to a grand jury. He said he didn’t have sex or sexual relations with Lewinsky, and he did. He had sex with her mouth, and he groped her breasts and fingered her vagina, which falls under the definition of sex provided to him. Those things all happened, he swore an oath to tell the truth,and then he said he didn’t. That’s literally, technically, and in all other ways exactly what happened. He lied, and pretending he didn’t is gaslighting. You can keep claiming it didn’t happen, but we all know it did and nobody is going to believe you.