Not so much. Thinking and deciding for yourself is a cherished value and core principle for Reform, Conservative, and modern Orthodox Jews. Pretty much only Ultraorthodox can really be counted on to fall in line with their rabbinical leadership.
Numerous rabbis have endorsed the Iran nuclear accord, but no so surprise that Reform Judaism as one entity declines to voice a Yea or Nay. Doing so would contradict the principle of respecting thinking and deciding for oneself.
For those who need a barf alert or “trigger warning,” this link comes from a liberal Jewish source.
That’s about 5% of Rabbis, all left wing apostates.