Third Philippic (57)

Now it was not at Olynthus only that this habit produced every kind of evil result; but at Eretria, when the democrats, ridding themselves of Plutarchus and his mercenaries, held the city together with Porthmus, some of them were for handing the government over to you, others to Philip. The latter on most points, or rather on all, gained the ear of the sorely tried and ill-starred Eretrians, and at last persuaded them to expel their real champions.