Pierre-Augustin Caron De Beaumarchais said this quote

Only one thing to it: a strong stomach. The guts to gladhand a man you're going to stab in the back; pledge allegiance to principles you stomp on every day; righteously denounce some despot in the press and sell him arms under the table. The talent to whip up the voters' worst passions while you seem to call on their highest instincts, and the sense to stay wrapped in the flag. That's politics: I'll take the simple life.