under oath in front of congress he claimed to not have had sex with Monica Lewinsky. It was later proven that he did. He lied under oath. A democratic led congress opted to NOT have him brought up on charges of perjury in front of congress while under oath.
So, no, he was not convicted of a crime.....but it was proven that he committed one.
Who cares if he lied to congress? they're a bunch of corrupt, hypocritical assholes anyways; his real crime was lying to the American People about it, if he had any courage and integrity at all he would have simply said "My personal life is none of anybody elses business" (which it isn't), instead he proved himself a liar and a coward.
Good news for Bubba though, his wife is even more corrupt and dishonest than he is.