If you can impeach Clinton, for lying about sex ....
Yeah except that isn't what Clinton was impeached for.
He was impeached for two accounts:
CLINTON
1) Perjury. He lied, UNDER OATH both in court and to the Senate. You cannot be impeached for lying unless it is in an open court, or while appearing before Congress in a hearing. He did both.
2) Obstruction of Justice. Him and his lawyer team pressured, coached several White House employees and officials to repeat/fabricate stories they were instructed while under oath.
It wasn't simple lying.
TRUMP...
1) Has not lied under oath, or while appearing before Congress.
2) The Mueller report has already been shown to have misrepresented witness statements in an attempt to show Trump obstructed, but the both the written documentation by investigators and FULL transcripts have proved those misrepresentations as false.
3) As will be shown, the investigators, by their own words, were biased against the witness...and even wrote in emails to each other that one way or another they would get him. This alone poisons ANY material these specific investigators contributed to the investigation, as well as any additional information that came from said material.