Meh, par for the course. It won't matter.
He denied being a sexist even after all those comments about pageant contestants, and then the pussy grabbing tape came out and removed all doubt, and people accepted him.
He denied any and all contact with the Russians, then this happens, but people will still accept him. This is America today.
His tax evasion, his corrupt charity, his potential nepotism, his conflicts of interest, his fraud lawsuits, none of it will matter. He denies everything, then when proved to be a liar he attacks his opponents with the same claim instead of admitting any wrongdoing. People eat it up. He can do no wrong.
He's currently competing with U. Grant for the title of most corrupt US president ever. History will judge him to be an embarrassment to our nation, like Grant, but he still gets to be president for as long as he can win elections. The greatest flaw in democracy is that popularity does not endow any worthiness for the job, so sometimes we end up with dumpster fires as leaders. We'll either move past it, or sunset.