to travel. >> biden attended his granddaughter's high school graduation and skipped an event with iowa activists which opened him up to veiled attacks by members at the hall of fame event. >> i understand there are well intentioned democrats and candidates who believe that the best way forward is a middle-ground strategy. in my view, that approach is not just bad public policy, but it is a failed political strategy. >> biden has been campaigning on a pitch to restore certain policies that have changed under trump but a pledge not to go back has helped mayor pete surge. >> we're not going to win by playing it safe or promising a return to normal. we are where we are because normal broke. >> candidates aren't contrasting policy proposals with the former v.p. but also fund-raising strategies. >> i'm not spending my time with