Vice President Joe Biden visits Burlington for Cancer Moonshot

Vice -President Joe Biden poses for a photo as he greets diners at the Penny Cluse Cafe in Burlington before participating in a Cancer Moonshot Roundtable at the University of Vermont on Friday, October 21, 2016.

Vice -President Joe Biden greets diners at the Penny Cluse Cafe in Burlington, Vermont before participating in a Cancer Moonshot Roundtable at the University of Vermont on Friday, October 21, 2016. (Pool photo by Glenn Russell/The Burlington Free Press)

Vice -President Joe Biden poses for a selfie with Christina Lauterbach of Burlington as he greets diners at the Penny Cluse Cafe in Burlington before participating in a Cancer Moonshot Roundtable at the University of Vermont on Friday, October 21, 2016.

Vice -President Joe Biden, center, waves to the crowd outside the Penny Cluse Cafe in Burlington before participating in a Cancer Moonshot Roundtable at the University of Vermont on Friday, October 21, 2016. With Biden are Democratic gubernatorial candidate Sue Minter, left, and U.S. Senator Patrick Leahy.

Vice -President Joe Biden, center, picks up some loose change outside the Penny Cluse Cafe in Burlington before participating in a Cancer Moonshot Roundtable at the University of Vermont on Friday, October 21, 2016. With Biden are U.S. Senator Patrick Leahy, left, and Democratic gubernatorial candidate Sue Minter.

Vice President Joe Biden, center, shows some some loose change he picked up outside the Penny Cluse Cafe in Burlington before participating in a Cancer Moonshot Roundtable at the University of Vermont on Friday, October 21, 2016. With Biden are U.S. Senator Patrick Leahy and Marcelle Leahy, left, and Democratic gubernatorial candidate Sue Minter.

Vice -President Joe Biden waves to the crowd outside the Penny Cluse Cafe in Burlington before participating in a Cancer Moonshot Roundtable at the University of Vermont on Friday, October 21, 2016.

People gather outside the Penny Cluse Cafe in Burlington as Vice -President Joe Biden has breakfast there before participating in a Cancer Moonshot Roundtable at the University of Vermont on Friday, October 21, 2016.

Vice -President Joe Biden, left, puts on his jacket as he enters the Davis Center to participate in a Cancer Moonshot Roundtable at the University of Vermont in Burlington on Friday, October 21, 2016.

Vice -President Joe Biden speaks during a Cancer Moonshot Roundtable at the University of Vermont in Burlington on Friday, October 21, 2016. Looking on are Dr. Gary Stein , director of the Vermont Cancer Center, left, and U. S. Senator Patrick Leahy.