Scores of pink knit hats came out of storage and went back on top of heads as about 1,000 protesters got the Women’s March got off to a loud and lively start in downtown Oakland. It was one of dozens of marches around the U.S. and the world to protest one full year of the Trump presidency and to organize political opposition to it. “Not Our President — Illegitimate,” read a giant banner being carried through Oakland to the shore of Lake Merritt. “This year I’m all about the Resistance movement and flipping the House (of Representatives) in 2018,” said Berkeley attorney Ginny Roemer, 64.