Democratic Party of Japan leader Banri Kaieda lashed out Wednesday at the massive ¥4.7 trillion public works spending package compiled by the Liberal Democratic Party.

In the first question-and-answer session in the Diet since Prime Minister Shinzo Abe's policy speech Monday, Kaieda said, "the birth of the Abe administration means the LDP's return to power led by legislators with vested interests."

Kaieda, elected by the DPJ in December to lead the party's recovery following its savage beating in the Lower House election, charged Abe with lacking any concrete growth strategies.