Frustrated by a legislative session that left many key issues hanging, Gov. Eliot Spitzer said Tuesday that he could govern without lawmakers. Downplaying the importance of passing laws, the freshman governor said he favored regulatory changes and executive orders to run the state -- neither of which require prior approval by the legislature. The Democratic governor repeated his criticism of a decision by the Senate's Republican majority to go home June 21, the official end of the six-month session, though many bills remain to be considered.