keywords: newsom picket boycott union mayor
text: Newsom joins picket line, vows boycott of hotels  #39;Bad business &lt;b&gt;...&lt;/b&gt; Mayor Gavin Newsom made good on his promise to join locked-out union members on the picket line Tuesday after a group of San Francisco hotels rejected his proposed 90-day cooling off period, extending a bitter labor dispute that has left 4,000 workers 