2006 Taipei mayoral election On May 27, 2006, Hau was selected as the KMT's candidate for the Taipei mayoral election, winning 60% of the primary vote. He was subsequently elected
Mayor of Taipei in the
2006 Republic of China municipal elections, defeating
DPP candidate and former premier
Frank Hsieh with 53.81% of the popular vote.
2010 Taipei mayoral election Hau was reelected for a second term in
November 2010 with 55.65% of the vote, defeating DPP candidate and former premier
Su Tseng-chang.
Taiwanese fisherman shooting incident Hau spoke at
Taipei City Hall shortly after the 2013
Guang Da Xing No. 28 incident involving Taiwan and the Philippines occurred on 9 May 2013 in
disputed water of the
South China Sea. In his comments, Hau urged the
ROC government to take action against the Philippine government by suspending all exchanges with them, banning the recruitment of their workers, sending
naval ships and extending their patrol beyond the exclusive economic zone to protect Taiwanese fishermen, retracting the 2013 Dragon Boat Festival invitation extended to the Philippines (an event scheduled to take place in June), bringing the killers to justice, compensating the family of the shooting victim, and suspending the donation of two ROC ambulances to the Philippines. He also advised Taipei residents not to travel to the Philippines.
2013 China visit In early July 2013, Hau led a delegation to attend the
Shanghai–Taipei City Forum in
Shanghai. He met with the director of
Taiwan Affairs Office Zhang Zhijun and
Mayor of Shanghai Yang Xiong. The
Taipei City Government and Shanghai City Government will sign several memorandums regarding libraries, district administration and "1999" city hotline service. The delegation also will discuss about cross-strait business, sports, education and media. During his stay in Shanghai, he made a statement regarding the recently signed
Cross-Strait Service Trade Agreement between
Straits Exchange Foundation and
Association for Relations Across the Taiwan Straits that China should establish mutual trust with Taiwan, reassure the Taiwanese people and strive for Taiwanese support on the issue. ==Later political career==