On free speech, he tried to make it illegal for people to publicly object to
adult group homes being established in their neighborhood by applying
fair housing law to those not in a public accommodation business.
Essentially, he'd have treated political speech as commercial speech.
He lost.
I don't recall this particular thing, although it seems rather specific. Not something that would make the "top stories" in the evening news. The greater public tends to react to things that are widely reported over and over, but if it's not really covered by the media, people might miss it.
On jury trials, his administration argued for the Petty Offense doctrine,
which allows judges to unilaterally suspend the right to trial by jury
if the accused faced less than a year in jail. This is now law, despite
the Constitution's guarantee in all prosecutions.
Those are the tip of the iceberg.
Yes, the Constitution guarantees a right to a trial by jury. I didn't know Clinton was personally responsible for this doctrine, or if it's just lawyers and judges looking for ways to cut corners.
But you have a point in that, in the eyes of Clinton's ardent fans, he really could do no wrong. He was the Democrats' answer to Ronald Reagan, who was also someone who could do no wrong in the eyes of his fans. He was also called the Teflon President.