Question: has there ever been a president and vice president from different parties

Answer: Yes, The United States presidential election of 1796 was the third quadrennial presidential election. It was held from Friday, November 4 to Wednesday, December 7, 1796. It was the first contested American presidential election, the first presidential election in which political parties played a dominant role, and the only presidential election in which a president and vice president were elected from opposing tickets. Incumbent Vice President John Adams of the Federalist Party defeated former Secretary of State Thomas Jefferson of the Democratic-Republican Party.