Garrett served as a senior policy advisor to
Oregon State Senate President
Peter Courtney and also worked in the office of Oregon State Senator
Richard Devlin. In 2008, Garrett was the Democratic nominee in House District 38 for the open seat left by
Greg Macpherson, who was not seeking re-election. In the general election, Garrett defeated Steve Griffith 62% to 38%. He was re-elected in 2010 and again in 2012. Governor
John Kitzhaber appointed Garrett to the
Oregon Court of Appeals in December 2013, to succeed retiring judge
David Schuman. Governor
Kate Brown appointed him to the
Oregon Supreme Court in December 2018; he succeeded retiring Justice
Rives Kistler. ==Personal==