Its not a negative ad to point out Hillary's lies, corruption, and failures in government jobs.
I see the sentence you wrote to be a perfect example of going negative and serving no useful purpose to an impartial voter. It contains an assumption that's as plain as the nose on one's face, can't you see it?
If the ad contains a reference to an ACTUAL lie, corrupt act or failure, what then?
The accusations that Hillary lies, is corrupt and has had failures in government jobs are ones I do accept. If I had doubts they can be easily checked out. Why I see the sentence as negative is because it stops right there. It doesn't offer me any help in deciding who to vote for because I have not assumed that Trump has better character and haven't assumed he wouldn't have botched things even worse.
I'm not saying don't say anything bad about an opponent. But to do so without offering a positive comparison to oneself just isn't convincing to me.