The notion that certain Americans are pre-emptively guilty of wrongdoing, whether there's any corroborating evidence to back up an accusation or not, isn't reserved for conservatives who happen to be in contention for a Supreme Court seat. In the hierarchy of progressive values, due process is a bottom dweller.
Over the past decade, you could see the illiberalism evolving on college campuses, where Democrats subverted basic standards of justice. It was the Obama administration that demanded schools judge cases of alleged sexual assaults under a "clear and convincing evidence" standard rather than on a "preponderance of evidence" standard, allowed accusers to appeal "not guilty" findings and permitted the meting out of punishment before any investigation was even conducted, among other big problems. Democrats are simply shepherding those corrosive standards into the real world.
Another area of American life where we continue to see egregious attacks on the presumption of innocence is gun ownership.
You might remember that a couple of years ago, Democrats engaged in a much-covered congressional "sit-in" to support legislation that would have stripped Americans on secret government watchlists ― hundreds of thousands of people who had never been accused, much less convicted, of any crime ― of their constitutional right to bear arms.