What's your basis for that statement. I remember what happened and that's not true. Rather than fight the issue, the Republicans cut a deal like they usually do.
Here's the history on the ethics charge. The Democrats contended that Newt's 'Renewing American Civilization' college course had a political purpose rather than a educational purpose. Thus, the Democrats charged that the tax-exempt status of Newt's organization, which was responsible for the college course, was violated. This was payback for the legitimate charges Newt had brought against Speaker Wright and which had resulted in his resignation.
Put simply, the ethics charge against Gingrich was bullshit then and it's a bullshit charge now. And you should be man enough to acknowledge that fact.
Did you even read the article and notice the party affiliation of those quoted, or the vote tally?
The Dems did not do this by themselves, regardless of whether the charges were meritorious.