Interesting concept. Get politicians to promise to tell the truth.
"I, as an elected official, make a personal pledge to tell the truth, the whole truth and nothing but the truth while representing my constituents and conducting the business of the office to which elected."
Only about their public acts and duties, mind you. If Bill wants to lie to Hillary about Monica, that's between them.
I should note that I met Miles when we both had kids at RCHS.