Complex sentence: Kletenik has been a vocal advocate of advancing women as rabbis and clergy, notably suggesting as much in a public sermon, deemed a controversial position, having written about it in the "Huffington Post".
Split into simpler sentences: Kletenik has been a vocal advocate of advancing women as rabbis and clergy, notably suggesting as much in a public sermon. Deemed a controversial position,, Kletenik has written about it in the "Huffington Post".