The Methodist churches I grew up in were more like Episcopal churches than what Americans think of as "Evangelicals". Indeed, if not for the Revolution, it's doubtful Methodists would have a distinct identity in the US.
At the time of the Revolution, there were no bishops in the US at all. The English Church had neglected their colonies for centuries, so Wesley had to make plans for congregations he helped set up. There is a rumor that Wesley may have received a secret ordination as a bishop, which would have been illegal at the time.
Something similar happened in the Episcopal Church. Episcopalians actually got their Holy Orders from the Scottish Episcopal Church after the revolution, through Samuel Seabury.