When the new 110th Congress convenes this week, it can count on intensive and sustained pressure from organized labor to enact pressing agenda items. Unions spent an estimated $100 million on the 2006 midterm elections, with the AFL-CIO paying for about $40 million of the tab. The candidates benefiting from this largesse, directly or indirectly, were overwhelmingly Democratic. Now that the Democrats have regained a majority in the House of Representatives and (to a lesser extent) in the Senate, ending a dozen years of frustration, labor bosses want Congress to deliver the goods. That means hiking the federal minimum wage from $5.15 to $7.25 an hour; restricting free-trade agreements; and expanding employee health and safety coverage. Most of all, it means passing card-check legislation, introduced in the last Congress by Sen. Ted Kennedy, D-Mass., and Rep. George Miller, D-Calif., that would enable unions to obtain exclusive representation of workers without necessarily having to win a majority in a secret-ballot election. In effect, labor officials want Congress to seriously compromise a principle of more than 70 years of established labor law.