Question: Lehava, is a Jewish far-right organization based in Israel that strictly opposes Jewish assimilation, objecting to personal relationships between Jews and non-Jews, its actions have been denounced by Reuven Rivlin, current President of Israel since which year?
Sentence (from "Rivka Ravitz"): Since 1999, she has worked for Israeli politician Reuven Rivlin, first as his bureau chief and campaign adviser, and, since his election as President of Israel in 2014, as his chief of staff.
Relevant evidence: No