"During his work on the presidential protection details he was able to achieve a close bond with President Barack Obama, and was well regarded by the Obama administration. Clancy was part of the Secret Service protective detail that jogged with President Bill Clinton in the early days of his presidency.[4]"
"Clancy was appointed as acting director following the resignation of Julia Pierson on October 1, 2014, a position he held until his appointment as director on February 18, 2015 by President Obama.[5]
On February 14, 2017, Clancy announced his retirement, effective March 4, 2017"
Sorry for the wiki link. But Joseph Clancy might be something to look into. He left during the beginning of Trump's Presidency.
Wikipedia Clancy
"During his work on the presidential protection details he was able to achieve a close bond with President Barack Obama, and was well regarded by the Obama administration. Clancy was part of the Secret Service protective detail that jogged with President Bill Clinton in the early days of his presidency.[4]"
"Clancy was appointed as acting director following the resignation of Julia Pierson on October 1, 2014, a position he held until his appointment as director on February 18, 2015 by President Obama.[5]
On February 14, 2017, Clancy announced his retirement, effective March 4, 2017"
I had to verify he's not related to Tom Clancy.