Conversation so far:
What is his stance on same sex marriage?
Christie indicated in 2009 that he would veto any bill legalizing same-sex marriage in the state.
Did he ever do that?
State Senate passed a bill legalizing same-sex marriage by a vote of 24 to 16, and on February 16, the Assembly passed it by a vote of 42 to 33.
Did he veto that bill?
Governor Christie vetoed the bill the next day and called for a constitutional amendment for same-sex marriage to be presented to the voters as a ballot referendum.

Question: Did it happen more than once?
Self-contained rewrite: Did Chris Christie veto a bill legalizing same-sex marriage more than once?