Despite their major roles in the Democratic Party over the last decade, Hillary Clinton and her new running mate, Tim Kaine, have run on largely separate tracks. Kaine endorsed then-Sen. Barack Obama instead of Clinton in the 2008 election and played an active role in his campaign.
Obama sought roles for both of them after he was elected: Clinton, of course, as secretary of State, and Kaine as the chairman of the Democratic National Committee. By the nature of those roles, their public interactions were almost nonexistent.
They did have one brief overlap in public service in January of 2013, as Clinton was preparing to step down from the Cabinet and Kaine had been newly sworn in as a senator from Virginia.