Former Sen. Claire McCaskill (D-MO) believes the secret to former President Donald Trump’s success is that he fibs often and with gusto. “There are certain voters in this country that have been victimized by a very simple concept: If you lie boldly, and frequently and repetitively — it will work,” McCaskill told MSNBC anchor Nicolle Wallace Tuesday. “And that’s what Trump has done. He has consistently sold lies.” The trigger of this commentary was a recently published interview billionaire Mark Cuban gave Axios in which he compared President Joe Biden to Trump. Want more breaking political new…