POLITICSVeterans Day: Mike Pence at Vietnam memorial, Tomb of Unknown SoldierVice President Mike Pence cleans a portion of the wall at the Vietnam Veterans Memorial on Veterans Day, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APVice President Mike Pence — along with his wife, Karen, lower center; Interior Secretary Ryan Zinke, back right; and other volunteers — cleans a portion of the wall at the Vietnam Veterans Memorial on Veterans Day, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APInterior Secretary Ryan Zinke, left, Vice President Mike Pence and Pence's wife, Karen, arrive to clean a portion of the wall at the Vietnam Veterans Memorial on Veterans Day, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APVolunteers remove mementos before cleaning the wall at the Vietnam Veterans Memorial on Veterans Day, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APVice President Mike Pence cleans a portion of the wall at the Vietnam Veterans Memorial on Veterans Day, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APVolunteers remove mementos left by family and friends before cleaning the wall at the Vietnam Veterans Memorial on Veterans Day, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APVice President Mike Pence pauses as he cleans a portion of the wall at the Vietnam Veterans Memorial on Veterans Day, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APVice President Mike Pence; his wife, Karen, foreground; and Interior Secretary Ryan Zinke clean a portion of the wall at the Vietnam Veterans Memorial on Veterans Day, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APMementos, including a worn pair of boots, were replaced after the wall was cleaned at the Vietnam Veterans Memorial on Veterans Day, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APVice President Mike Pence, center, and his wife, Karen, right center, pose for a photograph with other volunteers after cleaning the wall at the Vietnam Veterans Memorial on Veterans Day, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APVice President Mike Pence places a wreath at the Tomb of the Unknown Soldier during a ceremony at Arlington National Cemetery on Veterans Day, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APVice President Mike Pence pauses after placing a wreath at the Tomb of the Unknown Soldier during a ceremony at Arlington National Cemetery on Veterans Day, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APVice President Mike Pence pauses while speaking during a Veterans Day ceremony at Arlington National Cemetery, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APMembers of the audience listen as Vice President Mike Pence speaks during a Veterans Day ceremony at Arlington National Cemetery, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APVice President Mike Pence speaks during a Veterans Day ceremony at Arlington National Cemetery, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/APVice President Mike Pence speaks during a Veterans Day ceremony at Arlington National Cemetery, Saturday, Nov. 11, 2017, in Washington, D.C.Alex Brandon/AP