If he must drop out, I am sure 99.9% of Congress would have to based on similar items. A double-standard unless you side with the establishment.
The double standard is loud and glaring today by simply comparing all the condemnation heaped on Moore by the usual suspects, based on 38 year old accusations, and the far greater body of evidence against Robert Menendez in his trial that's hardly drawn a mention from the some pols.